Brief charging capacitor voltage ramp circuit using LM334 current source

Capacitors have a steady voltage change when they are being charged/discharged by a steady current. A 1000µF capacitor will change 1V per second @ 1mA. The voltage change looks like a ramp on an oscilloscope.

Diagram

Video below shows how I put this circuit together on a breadboard.

Simple charging capacitor voltage ramp using constant current source schematic diagram by electronzap electronzapdotcom
Simple charging capacitor voltage ramp using constant current source schematic diagram by electronzap electronzapdotcom

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Brief discharging capacitor voltage ramp using LM334 current source

Video

Quick 1000uF capacitor voltage ramp using LM334 set at 1mA circuit schematic to breadboard build


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  • Information on this site is not guaranteed to be accurate. Always consult the manufacturer info/datasheet of parts you use. Research the proper safety precautions for everything you do.