Joule Thief intresting Circuits

High Power Siren Circuit. This article discusses a robust siren circuit suitable for various applications. A complementary transistor pair (BC557 & BC337) is configured as an oscillator to directly drive the speaker. Transistor Q1 (BC557) is utilized to ensure...

This post discusses blue and white LED drivers utilizing a joule thief circuit. Further exploration of the circuit's functionality is provided, along with simulation points. The joule thief circuit is a simple and efficient boost converter that allows for the...

This circuit is a simple -5V power supply using a 555 timer, designed for low-power analog applications involving FET operational amplifiers. The circuit converts +5V to -5V to create a dual power supply. It operates as a 555 astable...

Hardware implementations of spiking neurons are highly beneficial for various applications, including high-speed modeling of large-scale neural systems, real-time operating systems, and bidirectional brain-machine interfaces. The specific circuit solutions for silicon neurons are dictated by the requirements of each...

This audio noise filter circuit is a bandpass filter designed for the audio frequency range. It effectively filters out unwanted signals that fall outside the audio frequencies. The circuit consists of two filters: a low-pass filter and a high-pass...

At the beginning of the design process, the designer must determine which circuit structure is appropriate for a specific purpose. During this phase, numerical and symbolic analysis are of limited utility. There are no numerical values available for conventional...