Current monitor

A clip-on current probe, like the Tektronix P6021, is a valuable tool for displaying current waveforms on an oscilloscope. However, it has limitations in low-frequency response. Specifically, the P6021 is sensitive to a range of 2mA/mV, and frequencies below...

A continuous glow signifies that everything is normal; a blinking or extinguished neon bulb indicates a broken earth or ground connection, or interchanged neutral and live wires. In electronic circuits, a neon bulb is often used as an indicator light...

Strictly speaking, this simple circuit should not work. How could anyone expect an ordinary light-dependent resistor (LDR) photocell to detect the change in blood flow as the heart pulsates through a fingertip in natural daylight? The secret lies in...

The LT1012 corrects errors in the booster stage and does not set high-frequency signals. Fast signals are fed directly to the stage via Q5 and the 0.01 µF coupling capacitors. DC and low-frequency signals drive the stage via the...

The circuit utilizes standard analog control through potentiometers while incorporating digital readouts for voltage and current measurements. Despite reviewing power supply unit (PSU) video tutorials, the single LT308x configuration with a transistor limiter did not function as expected in...

The circuit described below monitors the car's brake lights and indicates their operational status using a light-emitting diode (LED). This functionality helps prevent fines for driving with defective brake lights and enhances road safety. The monitor relies on the...