Power and signal integrity and basic
Elenco power and signal integrity and basic
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50w(r and l channel), maxthe higher the voltage, the higher the current, and the higher the power outputhow to choose the power supply?the power supply with the board is very key, the selected power supply ripple must be small, ripple large power supply will lead to power amplifier bottom noise, there is a current soundif you only have 9v12v or 1a 2a power supply, you can also use it but with low powerit is recommended to use 18v19v24v power supply with current above 5aif you are above 19v 5a, no problem with 8-10 inches, power must be highly valuedif the voltage is too low and the sound is amplified, it will easily cause sound distortionwhen using it, choose the volume close to the maximum, which may cause distortion and affect the sound qualityif the current is too low and the horn cannot be brought up, the voltage will be pulled down, which will lead to abnormal operation or poor sound qualityhow to select speakers?about the speaker type: commonly used speakers are generally 4-8 ohms100w(subwoofer)quantità: 1 pzil pacchetto include:1 x amplifier boarddomanda e risposta:11chip: tpa3116d2(with am anti-interference function)power: dc12-24v/5aadapter speaker: 20-100w, 4-8ωoutput power: max0 (nessuna schermatura, 10 m)sensibilità di ingresso: 500 mvingresso audio: aux+bluetoothchannel: 2if you only have 12v 1a, you can have 3-4 inch speakersspecifica:item type: amplifier boardmodel: zk-tb21materiale: componenti elettronicicolore: blackversione bluetooth: 5
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21290000915527344 €
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3af/at standard poe power supply 1 2 4 5 +, and 3 6 7 8 - whole switch consumption whole switch consumption: <410w maximum poe output power: 370w dimensions 440 mm * 284 mm * 44 mm(l x w x h) environment operating temperature: 0°c - 45°c operating humidity: (10% - 90%)rh, non-condensing storage temperature: -40°c - 70°c storage humidity: (5% - 90%)rh, non-condensing certificates fcc, ce, rohs software features poe power supply management port poe configuration and power supply with priority poe over-temperature protection poe scheduled management support intelligent and graphical management and poe-powered device detection (port status, power assignment and poe-powered device status) security features support arp receiving limit support unknown mac address discard support dos attack defense support 8021q vlan vlan layer-3 interfaces support three port modes: access, trunk and hybrid dhcp support dhcp server support dhcp relay support dhcp snooping support option 82 policy configuration routing support inter-vlan routing support ipv4 static routing support dynamic arp and static arp support arp aging configuration port aggregation support static aggregation support lacp dynamic aggregation support a maximum of 32 aggregation groups and a maximum of 8 member ports in each group stp (spanning tree protocol) support ieee 8027 mpps switching buffer 12 mbit mac address table 16k input voltage 100 - 240v ac 50/60hz poe power supply ports 1 to 24 support ieee 8021s led indicators one link/act or poe led indicator for each port one link/one link/act mode converting led indicator for each device one poe mode converting led indicator for each device one poe max led indicator for each device one power led indicator for each device one sys led indicator for each device fixed ports 24 x 10/100/1000 base-t ethernet ports (poe & data) 4 x 1000 base-x sfp port 1 x rj45 console port lightning protection port: 6 kv power supply: 6 kv forwarding mode store-and-forward switching capacity 56 gbps packet forwarding rate 41lo switch può offrire una potenza di uscita poe fino a 370 w e supportare il controllo e la gestione centralizzati tramite il controller software ip-com profi, consentendo agli utenti di implementare rapidamente la rete protocollo di instradamento lo switch supporta il protocollo di routing statico che supporta lisolamento di livello 2 e lintercomunicazione di livello 3, ottenendo così un inoltro di livello 3 efficiente e velocevisualizzazione il sistema può generare automaticamente una topologia di rete1w rstp (rapid spbrand: ip-com pro-s24-410w profi switch ip-com conforme agli standard ieee 802supporta il rilevamento delle telecamere ip basato sul protocollo onvif e il rilevamento dei dispositivi di rete basato su lldp, nonché il rilevamento dello stato online/offline per tutti i dispositivi nella rete, il che migliora lefficienza operativa e di manutenzione della lan e riduce anche i costi di manutenzione1d stp (spanning tree protocol) support ieee 8023/3u/3ab/3z/3x/1p/1q/1w/1d/1s/3af/at 24 porte ethernet 10/100/1000 base-t (poe), 4 porte sfp 1000 base-x apprendimento automatico dellindirizzo mac 16k e dellindirizzo mac 12mb di buffer di grandi dimensioni capacità di commutazione: 56 gbps supporta numerosi servizi, come routing statico, vlan, igmp, qos, acl, dhcp snooping, arp e telnet supporta la gestione del controller software profi pro-s24-410w è uno switch gigabit con poe a 24 porte della serie di switch controller software ip-com profi, appositamente progettato per scenari come pmi e hotel intelligentila potenza massima dellintero switch è di 370 w e la potenza di uscita massima di una singola porta è di 30 whardware specifications network standards ieee802gestione centralizzata supporta la gestione centralizzata e il monitoraggio dello stato del dispositivo tramite il controller del software profi e supporta laccesso remoto ai servizi cloud, che non è limitato dalla posizione di installazione del dispositivo alimentatore poe intelligente fornisce 24 porte poe gigabit conformi agli standard ieee802gli utenti possono impostare in modo flessibile il tempo di alimentazione poe, il che significa che lalimentazione poe può essere attivata o disattivata a intervalli regolari1x security authentication support radius authentication vlan ieee 802sizes: 0 box: 3 color: light brown certificate: ce rohs fcc comp
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Synchronous rectification for low power dissipation3v and 5 vfive selectable step modes: full, 1/2, 1/4, 1/8 and 1/16caratteristiche:1please note that this is an unassembled kit and basic soldering skills are neededinternal uvlo and low rs (on) outputpwm spindle and direction pins,4-axis support (x, y, z, a-can duplicate x,y,z or do a full 4th axis with custom firmware using pins d12 and d13)5stepper motors can be connected with 4 pin molex connectors or soldered in placeuses removable a4988 or drv8825 compatible stepper drivers)caratteristiche:1mix with slow current decay modesdetails:cnc shield boardversion: 3(open source firmware that runs on an that turns g-code commands into stepper signals)40colore rossosize(l*w*h): 68 x 53 x 18 mmvoltage: dc 12~36 v (at the moment only the drv8825 drivers can handle up to 36v so please consider the operation voltage when powering the boardautomatic current decay mode detection/selectiondrv8825 driver del motore passo-passocolor: purplesize(l*w*h)the extension board can be used for carving machine, 3 d printer driver expansion board3a4988 driver del motore passo-passocolore rossosize(l*w*h): 20 x 15 x 10 mmthermal shutdown circuitry: yescrossover-current protection: yesground fault protection: yesload short-circuit protection: yescompatible logic supply: 3warning: connecting or disconnecting a stepper motor while the driver is powered can destroy the driver
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13779999732971191 €
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The module is tiny and compatible with standard jr slotfm30 also supports multiple signal input and commu-nication protocols, users will have an unprecedented experience of manipulatingil loro modellismo, esplorando i limiti di portata e divertendosithe built-in bluetooth function supports outdoor wireless fc settings and real-time flight status monitoring4ghz 30km telemetria bluetooth modulo trasmettitore a lungo raggio uart sbus ingresso ppm con fr mini ota ricevitore per rc dronepanoramica:30km radio module with datalink, telemetry, and bluetoothfm30 is based on siyi techs industry-level radio frequency technology, accu-mulated for years5 mmworking temperature: -10-55°ccaratteristiche:30km long rangeaplied with lately developed technologies, such as super long distance, self-adaptive bandwidt4vconsumo energetico: 0,7 wfirmware update: supportedproduct dimension: 70 20*33 mmcompatible slot size: 59"4318il manuale utente in inglese e laggiornamento del firmware del modulo fm30 possono essere ottenuti tramite google drivelink: https://drivecom/drive/folders/1duxoyszp7znk7u3byxo3rh4ugd3k4pi4?usp=sharingdescrizione:marca: siyinome articolo: modulo fm30 con fr mini ricevitoremodel: fm30module weight: 36gfr ricevitore peso: 1,5 g (senza antenna)frequency: 2400- 2483 mhztransmission distance: >30 km(unobstructed, free of interference)latency: 10 ms(protocol mode)signal input: uart, s bus, ppmchannels: 16 chantenna connector: sma femalepower input: 5-8
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5795000076293945 €
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The module is tiny and compatible with standard jr slotfm30 also supports multiple signal input and commu-nication protocols, users will have an unprecedented experience of manipulatingil loro modellismo, esplorando i limiti di portata e divertendosithe built-in bluetooth function supports outdoor wireless fc settings and real-time flight status monitoring4ghz 30km telemetria bluetooth modulo trasmettitore a lungo raggio uart sbus ingresso ppm con fr ota ricevitore per rc dronepanoramica:30km radio module with datalink, telemetry, and bluetoothfm30 is based on siyi techs industry-level radio frequency technology, accu-mulated for yearscom/drive/folders/1duxoyszp7znk7u3byxo3rh4ugd3k4pi4?usp=sharingdescrizione:marca: siyiitem name: fm30 module with fr/fr mini receivermodel: fm30module weight: 36gfr receiver weight: 20g, fr mini receiver wight: 14vconsumo energetico: 0,7 wfirmware update: supportedproduct dimension: 70 20*33 mmcompatible slot size: 59"43185g (both without antenna)frequency: 2400- 2483 mhztransmission distance: >30 km(unobstructed, free of interference)latency: 10 ms(protocol mode)signal input: uart, s bus, ppmchannels: 16 chantenna connector: sma femalepower input: 5-85 mmworking temperature: -10-55°ccaratteristiche:30km long rangeaplied with lately developed technologies, such as super long distil manuale utente in inglese e laggiornamento del firmware del modulo fm30 possono essere ottenuti tramite google drivelink: https://drive
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59790000915527344 €
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For each lavalier microphone, the system provides 40 uhf frequencies, short audio delay, high signal stability, and low interferencelavalier risvolto condensatore per microfono wireless u13jgs - trasmettitore e ricevitore - 50m - frequenza: 50hz-8khz loud and clear sound up to 50m thanks to the receiver and transmitter, which uses uhf signal to eliminate background noiseit supports 40 wireless lavalier microphones to be used at the same time
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44400001525878906 €
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6chiarocaratteristica:piccole dimensioni e super luminosolow heat, energy saving, low power consumptionmiglior sostituto per sorgenti luminose tradizionalican be used as light decorations, torches, toys & gifts, car decorations, light box advertising, signal indicator, and so oncoloree: bianco giallo rosso blu verdetaglia:8mmlunghezza perno: 17 mm e 19 mmview angle:200°il pacchetto include:20x luce a led kit assortito6chiaroblu8mm460-4702specifica:coloretaglialunghezza donda (nm)(se = 20ma)tensione (v)(se = 20ma)coloree delle lentirosso8mm620-63013chiarogiallo8mm580-59013chiaroverde8mm520-53026chiarobianca8mm6000-6500k2
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728000020980835 €
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Improve power utilizationthis driver pays attention to current and efficiency, and effectively exerts motor power and battery lifethe mosfet driver chip has its own hardware braking function and power feedback functionthe driver is superior to the complex problem of timing coordination and complementary driving problems in the integrated power chip solution with low power margin and other half-bridge combination solutionthis can make the car can start quickly and kill the car quicklythe mosfet adopts n-channel irf3205 mosfet, uses two dedicated half-bridge driver chips, and uses a bootstrap capacitor for the upper tube, so that the upper tube has enough driving voltage, which can quickly turn on the mosfet channel and improve the acceleration curvature of the motorthis driver also has a braking function that can quickly brake the motor, the braking is rapid, the braking is obvious, and the operation is simple to achieve this functioncan withstand large current overload, the maximum current can reach 30afeature:the performance of this driver is not comparable to those of l298 motor driver chipsthe reliable driving method of the complete two-piece half-bridge driver chip minimizes the switching loss of the mosfetit can quickly brake the motorthe driver is composed of two complete half-bridge driver chips + extremely low internal resistance n-channel mosfetthe driver can work at 0%-99% pwm modulation duty cycle, so that the motor can get enough driving voltage
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138100004196167 €
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It outputs two-channel stereo, and the power can reach 10w+10where we will introduce a power amplifier module-keyes brick pam8610 digital power amplifier 2x10w dual-channel stereo power amplifier module5mm)positioning hole: 3mm in diameterpackage includes:1 x pam8610 digital power amplifier boardthis module mainly uses the pam8610 chip, and its gain is 32dbintroduce:when we diy audio, because the initial sound is not big, we will add a power amplifier module to the audio to amplify the soundwhen connecting, connect the white port of the 5pin cable with the white anti-reverse port on the module, and connect the female port with the pin headers of other devicestechnical parameter:wire length: 200mminput voltage: dc 7-15v10w@10%thd 1 channel output into a 8ω load at 13vlow noise: -90dbefficiency: greater than 90% efficiencygain 32dbwith shutdown/mute/fade functionover current, thermal and short-circuit protectionlow thd+n (0for the purpose of wiring, we also distribute a 5pin line, one end of the line is a white anti-reverse plug interface (matching the white terminal on the module), and the other end is a 5pin dupont line female interfaceat the same time, in order to facilitate fixing the module to other devices, the module comes with a positioning hole with a diameter of 3mm54mm pitch 5pin anti-reverse interface4pin green terminal block (spacing is 31%)low quiescent currentpopnoise suppressioninterface: 2
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4900000095367432 €
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Charging display: the indicator light is red when charging, and the indicator light is green when fully charged;43 in 1 usb rechargeable led bicycle wireless remote control turn signal taillight cycling equipment 30lm 5 modes waterproof mountain bike safety night riding warning rear lampspecifica:materiale del corpo principale: abscolore del prodotto: nero + biancoproduct size: about 129x40x15mmproduct net weight: about 110g (weight of tail light + remote control)lamp beads: 30*yellow led+8*red ledluminosità: 30lmlighting gear: 5 gears, yellow light strong light - red light strong light - all lights flashing - left turn signal - right turn signalbattery: built-in polymer lithium battery (600mah)battery life: about 5hcaratteristica:1design staccabile a 3 stadi: può essere utilizzato separatamente o in combinazione;2turn signal: it can remind the vehicle behind you that you are about to change position;3a causa del diverso effetto del monitor e della luce, il colore effettivo dellarticolo potrebbe essere leggermente diverso dal colore mostrato nelle immagininota:because this remote control has a special structure, it cannot be equipped with an insulating sheet; if the remote control does not work after receiving the goods, you can check whether the button battery of the remote control is exhaustedgrazie!si prega di consentire una deviazione di misurazione di 1-2 cm dovuta alla misurazione manuale
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15739999771118164 €
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1p port trust mode supports dscp port trust mode supports a maximum of 8 queue service quality mapping acl supports mac acl supports ip acl loading and upgrade supports ftp/tftp/http upgrade supports configuration import and export management and maintenance supports telnet configuration, console port configuration supports snmp v1/v2/v3 supports web management and maintenance supports ping/tracert detection1s standards 10 x 10/100/1000 base-t ethernet ports (data/power), 2 separate 1000 base-x sfp ports，1 x console port 16 k mac address table and mac address auto-learning 12mb large buffer switching capability: 24gbps supports abundant services, such as static routing based on ipv4, dhcp server, vlan, igmp, qos, acl, dhcp snooping, arp and telnet built-in 6 kv professional lightning protection power, 13 inch/1 u standard rack-mounted design hardware specifications standards ieee8021s led indicators one link/act led indicator for each port one power led indicator for each device one sys led indicator for each device interfaces 10 x 10/100/1000 base-t ethernet ports (data/power) 2 x 1000 base-x sfp ports (data) lightning protection port: 6kv power: 6kv forwarding mode store-and-forward switching capability 24gbps packet forwarding rate 171q vlan supports vlan layer-3 interfaces supports three port modes: access, trunk and hybrid dhcp supports dhcp server supports dhcp relay supports dhcp snooping supports option 82 policy configuration l3 routing supports vlan-based routing supports ipv4 static routing supports static arp port aggregation supports static aggregation supports lacp dynamic aggregation spanning tree supports ieee 8024 box: 5 color: light brown certificate: ce rohs fcc comp9mpps buffer 12mbit mac address table 16k input voltage 100-240v～ 50/60hz dimensions 294 mm x 1791d stp (spanning tree protocol) supports ieee 8021s mstp (multiple spanning tree protocol) supports edge port supports bpdu statistics multicast supports igmp snooping v1/v2/v3 supports port fast leave port mirroring supports n: 1 port mirroring qos supports sp (strict priority) supports swrr (simple weighted round robin) support wrr (weighted round robin) supports 8026 mm x 44 mm(l*w*h) operating environment operating temperature: 0°c - 40℃ storage temperature: -40°c - 70°c operating humidity: (10% - 90%)rh, non-condensing storage humidity: (5% - 90%)rh, non-condensing certificates ccc、fcc、ce、rohs software specifications security features supports arp receiving limit supports unknown mac address discard supports dos attack defense supports 8021x security authentication supports radius authentication vlan supports ieee 8021w rstp (rapid spanning tree protocol) supports ieee 802brand: ip-com ip-com - g5312f l3 managed switch comply with ieee 802
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1p port trust mode supports dscp port trust mode supports a maximum of 8-queue service quality mapping acl supports mac acl and ip acl loading and upgrade supports ftp/tftp/http upgrade supports configuration import and export management and maintenance supports telnet, console supports snmp v1/v2/v3 supports web management and maintenance supports ping/tracert/connection detection cpu monitoring and memory monitoring70mpps buffer 12mb mac address table 16k jombo frame 10k poe power supply management n/a poe budget n/a input voltage 100-240v ac 50/60hz power consumption full load: ＜24w empty load: ＜10w dimension 4401q vlan vlan layer-3 interfaces supports three port modes: access, trunk and hybrid dhcp server dhcp relay dhcp snooping supports option 82 policy configuration port aggregation static aggregation lacp dynamic aggregation spanning tree ieee 8020mm mounting desktop mounting: support wall mounting: support rack mounting:non-support energy efficient support environment operating temperature: 0°c - 45℃ storage temperature: -40°c - 70°c operating humidity: (10% - 90%) rh, non-condensing storage humidity: (5% - 90%) rh, non-condensing certification fcc、ce、rohs software l3 features supports vlan-based routing supports ipv4 static routing supports static arp poe power supply management n/a security features arp receiving limit unknown mac address discard dos attack defense 802per soddisfare la domanda di accesso ad alte prestazioni, lo switch fornisce 24 porte ethernet base-t 10/100/1000 mbps e 4 porte sfp base-x 1000 mbps separate1s mstp (multiple spanning tree protocol) supports edge port supports bpdu statistics multicast igmp snooping v1/v2/v3 supports port fast leave port mirroring supports n: 1 port mirroring quality of service sp (strict priority) swrr (simple weighted round robin) wrr (weighted round robin) supports 802dopo aver abilitato la funzione qos, il traffico nella rete sarà controllato con precisione in base alla priorità delletichettacon una struttura hardware e una piattaforma software innovative, è dotato di una potente capacità di elaborazione e di un completo meccanismo di protezione della sicurezza, rendendo la gestione e la manutenzione facili e semplici, soddisfacendo pienamente le esigenze di accesso utente ad alta densità e aggregazione ad alte prestazioni, ideale per il livello di aggregazione o strato centrale di reti medio-grandi come imprese e campusassegnerà la priorità al traffico importante e ridurrà la percentuale di flussi di dati che occupano una grande quantità di traffico insignificante in condizioni di larghezza di banda limitata, al fine di soddisfare meglio le attuali esigenze di trasmissionerispetto allutilizzo di uno switch layer 2 per la trasmissione, non è necessario passare attraverso un router e la velocità di inoltro è maggiore! qos flessibile, controllo del traffico preciso il teg5328f supporta tre modalità di pianificazione qos (sp, swrr, wrr) per un controllo del traffico più accurato1d stp (spanning tree protocol) ieee 8021w rstp (rapid spanning tree protocol) ieee 802supporta acl layer 2 e layer 3, per un accesso più sicuro supporta un controllo degli accessi rigoroso basato sullindirizzo mac o sullindirizzo ip, che può filtrare i pacchetti di dati corrispondenti per migliorare la sicurezza della rete dellutentecaratteristiche tecniche hardware network standards ieee802può essere utilizzato per la distribuzione in rete di unità aziendali, mediche e di altro tipo1x security authentication radius security authentication vlan ieee 802sizes: 0 box: 5 color: light brown certificate: ce rohs fcc comp1s led indicator 1*link/act led indicator 1*power led indicator 1*sys led indicator interfaces 24*10/100/1000 base-t ethernet ports 4*1000 base-x sfp ports 1*console port transmission media recommended: cat5/5e utp or better fan quantity n/a level of protection lightning protection for ports: 6kv lightning protection for power: 6kv esd: air discharge: ±10kv contact discharge: ±8kv forwarding mode store-and-forward switch capacity 56gbps packet forwarding rate 41routing layer-3, inoltro rapido ad alta efficienza supporta i protocolli di routing layer 3 www, supporta linoltro di layer 3 fino a oltre 400 terminali, soddisfa facilmente linstradamento e linoltro di layer 3 attraverso i segmenti di rete e raggiunge davvero lisolamento della rete layer 2 e linteroperabilità di rete layer 3brand: tenda teg5328f l3 managed switch tenda teg5328f è uno switch gestito da tenda layer-3
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