RT, I'm curious about the black glass face recognition attendance machines. What kind of sensors do they use to determine if there is someone in front of them? If the camera is turned on all day for f
Should the filter capacitor and bleeder resistor in the circuit be placed before or after the anti-reverse polarity diode?
What will happen if a capacitor of several μF is placed before the reverse-co
Today I received a call from SF Express saying that a package had arrived. I asked them to leave it at Cainiao Supermarket. I went to pick it up after noon. Wow, it was huge! It was bigger than I imag
The prediction is for reference only. Whether it makes sense or not, just take it as a reference.power supply:
The charging and discharging power supply system is to first power the supercapacitor and