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MOSFET – Off after a delay
In this video we use the charge discharge cycle of a capacitor as a timer. When you press the button, the gate of the FET goes high and it switches on, while at the same time it charges the cap. When you release the button, only the charge left in the cap keeps the gate open, and when it discharges fully, the FET is switched off. You can have delays from minutes to days…
5 boards for about $22 in about 7 days https://www.pcbway.com
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Here is all the gear I currently use:
Oscilloscope 1: Rigol 1054Z https://amzn.to/2PRybtN
Oscilloscope 2: Siglent SDS1202X-E https://amzn.to/31Kk1yH
Power Supply 1: TekPower TP3005N https://amzn.to/2TeQnxI
Power Supply 2: RUIDENG DP50V5A https://amzn.to/2sNicSe
Signal Generator: JS2800 https://ban.ggood.vip/d9vk
DMM1: Owon18B https://amzn.to/2SbIGLs
DMM2: Aneng 8008 https://amzn.to/2sNQncI
DMM3: Aneng 8009 https://amzn.to/2S5qeEp
DMM4: Uni-T UT801 https://amzn.to/2S89SuL
Soldering Station1: Zeny (Yihua)862D+ https://amzn.to/2S49z4e
Soldering Station2: KSGR T12 https://amzn.to/2Wk7Dn9
Light Meter Smart Sensor AS803 https://amzn.to/2B2gyRg