Another small power supply circuit

This universal power supply board is a perfect match for powering the low power devices such as MCUs, Sensors & Modules with the best load and line regulation features. The board can take an AC or DC input of as low as 8V and as high as 28V to provide a multiple DC output voltages like 3.3V, 5V, 12V, variable DC output, and the output same as the input. The maximum load regulation is measured to be 60mV and the maximum line regulation is measured to be 0.2%/V.

It's a voltmeter that indicates battery status, more precisely the value of the voltage battery.

40 Vac to 5 volt @ 600mA DC supply has resetable fuse and TVS to protect uCPU.

Battery charger with BD-type transistor

PWM, (Pulse Width Modulation) is the most efficient way to control analog circuits using digital outputs, by changing the duration and frequency of the signal.

You can use up to 24 white LEDs.

DIY High Performance & Fully Protected 300W Stereo Class D Amplifier using TAS5630B for your Active Speaker or High Power Bluetooth BomBox.

This circuit is made for a DIY builder, I left enough room for a heat sink. for the filter capacitor.

PicoPD allows access to all USB PD 3.0 profile include PPS so that you can get the most current at any voltage out of your new USB-C charger

Another electronic project.

Buying a ready-made power supply would be too easy, so I decided to make my own.

Tester circuit for LEDs

Differential voltage source at home.

The Open Source Fusion USB 3.0 Charge Pro is an all-in-one keychain tool for secure and efficient USB charging. It features a USB Power Meter to monitor charging, a Cable Tester to check cable integrity, a USB Condom for data protection when charging in public, and a Power Splitter to charge multiple devices from one port—all in a compact design.