Electronic Circuit Diagrams



Analog Circuits and Opamp Designs. Analog Chips and Discrete Circuits. Oscillators and Waveform. Amplifiers and Servos.

Battery Level Indicator

Battery level voltage measurement is best done with a dummy load. This circuit has four LEDs to show the charge left. It is important to avoid overcharge or deep discharge of rechargeable batteries. Never try recharging normal batteries. Using rechargeable batteries are good for the environment.

on: 7/11/2019