5v usb power supply circuit

This circuit is designed for high current applications using nickel-cadmium rechargeable batteries, and it can also function as a general low-voltage DC power supply. The circuit consists of a charging section and a DC output section. K2 serves as...

Hi-fi headphones possess a wide frequency response and low distortion, making them incomparable to desktop Hi-Fi audio systems, particularly when compared to some branded headphones and even high-quality speakers. High-fidelity headphones are designed for music listening, offering high resolving...

The following circuit is a power amplifier circuit for an FM transmitter with an output power of 30 watts. The power amplifier circuit utilizes a power transistor of type 2SC1946A. The FM transmitter operates with a 13.8-volt DC power...

A used 250VA power transformer has been removed from equipment recently. The transformer features a dual 10V AC output along with several auxiliary voltage outputs. The 10V winding is rated for 10A, making it suitable for a high current...

The LED operates at 3V, and based on information available online, a blue LED typically supports a maximum current of 0.03A. Given the available current from the USB source, the intention is to construct a parallel circuit. However, the...

Each subsequent stage adds 1700 volts, resulting in more than 20 kV with 12 stages. However, this voltage can only be achieved when the output of the cascade is unloaded. The described circuit appears to be a high-voltage cascade generator,...