In order to help his friend prepare for a talk at DEFCON this weekend, [Craig] built an IR photodiode amplifier circuit. The circuit extended the detection range of the hack from a few inches to a few ...

Here this circuit is based on the principle of audio amplification using operational amplifier and pulse width modulation using 555 Timer. In this article we are describing the principle, design and ...

Feedback refers to a core concept in circuit design and control theory, used to stabilize amplifiers and control system ...

In the last Circuit VR we looked at some basic op amp circuits in a simulator, including the non-inverting amplifier. Sometimes you want an amplifier that inverts the signal. That is a 5V input ...

The 2026 National Electrical Code clarifies rules for 10 amp branch circuits, conductor sizes and permitted uses for LED ...

Use this fm antenna amplifier in areas where the signal reception of FM stations is too bad. This circuit is just the right thing to do it. It is designed in such a way that the supply current ...

Wesgarde is highlighting the Optifuse 641, 642 and 643 mid-amp circuit breakers for large vehicle applications, offering ...

A guaranteed way to make a receiver or amplifier fail is to create a short circuit by improperly connecting speaker wire to your speakers or receiver. It could be as simple as a stray strand of wire ...