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3S 5A 12.6v BMS Li-Ion Battery Protection (ZX-4210-3S) Board connection

on February 01, 2026

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ON Time delay timer by using One NPN Transistor and Capacitor

ON Time delay timer by using One NPN Transistor and Capacitor This video how to make ON time delay timer by using One NPN transistor and Capacitor, This LED glowing for a few seconds when the power is turned on. The circuit relies on the (10uF to 3300uF) discharging into the rest of the circuit so that it is uncharged when the circuit is turned on again.you can change the time delay ON increase of (uF) capacitor value. The component is using 1. NPN transistor(BC547) 2. 220 Ohm -2 3. 1M ohm 4. 100 ohm 5. 47uF,220uF capacitor 6. LED-2

Relay OFF Time delay timer by using NPN Transistor and Capacitor

Relay OFF Time delay timer by using NPN Transistor and Capacitor OFF time delay timer by using NPN transistor and Capacitor, first of (B)base touch to positivevoltage so the capacitor also gets charged fully, remove to wire through the power to the base gets disconnected, the transistor continues to conduct with the aid of the stored energy in the capacitor which now starts discharging its stored charge via the transistor.The Relay also stays switched ON until the capacitor gets fully discharged. The value of the capacitor determines the time delay or for how long the transistor stays in the conducting mode. The component is using 1. NPN transistor(BC548) 2. 12v DC SPDT Relay 3. 1K ohm resistor 4. 1000uF/25v capacitor 5. 3v battery with LED

2 in 1 AC to DC Rectifier PCB board / full wave bridge & center tapped rectifier PCB circuit diagram Full wave bridge rectifier Center tapped rectifier full wave 12v rectifier this video how to make a AC to DC converter using full wave bridge rectifier and center tapped rectifier 2 in 1 PCB board ------------------------------------------------------------------------------- the component is using 1) 1N4007 diode * 4 2) 2200uF / 25v capacitor 3) 12v-0-12v,1A center tapped transformer 4) PCB board ------------------------------------------------------------------------------- buy this material to following link > Electronic Components Project Kit or Breadboard, Capacitor, Resistor, LED, Switch = https://goo.gl/1mBi3L > 1N4007 Mic 1A 1000V DO-41 Rectifier Diode Set Of 10 = https://goo.gl/X71hCp > ...

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