Circuit for Jamie Pocock DIY Ring Flash

led lighting management ic improves power factor and efficiency

There is significant sensitivity to operating costs when managing high-powered commercial lighting. In these applications, there is a heightened focus on energy efficiency and AC line power factor, as these parameters influence operating expenses. Electric utilities impose additional charges on...

LED stepdown power supply

Below is a proof of concept circuit which needs improvement. The part values shown will run a high efficiency red LED with a Vf of 1.9V from only 2 nicads, right down to 2 volts. For a white LED you...

dancing lights circuit diagram

This circuit serves as a decorative element or indicator, featuring adjustable flashing or dancing speeds of LEDs and the ability to create various light patterns. It consists of two astable multivibrators: one formed by transistors T1 and T2, and the...

LED monitor for 12V Battery

A Very Simple circuit and some Variations. Play with it. All parts are cheap and should be easily obtained. None are very critical. The circuit in question is a basic electronic assembly designed for educational purposes and experimentation. It typically consists of...

Flashing-LED Battery-Status Indicator Circuit

A battery-status indicator circuit is useful for monitoring portable test equipment and similar devices. LED D1 flashes to attract the user's attention, signaling that the circuit is operational, preventing it from being left on unintentionally. The circuit produces approximately two...

Pocket LED Light

This is a pocket-sized LED flashlight operating with only one AAA battery. However, the super high luminosity LEDs (blue, green, or white) require at least 3.5 volts of forward voltage. This flashlight is boosting input voltage up to the operating...

LEDs Design Ideas

This slideshow is based on the LED Design Ideas Collection, which features a compilation of LED-related circuits and design applications submitted by readers and published in EDN's Design Ideas section. Users can browse through the circuit schematics in this collection...

The Stunning Camera Circuit

The schematic for this project is not overly complex; however, it is crucial to understand the circuit board and its operation due to the high voltages generated. Below is a rough draft schematic of the camera used for this project....

220V AC Powered White Led Lamp

The circuit provides sufficient illumination suitable for reading purposes. Capacitor CX, in conjunction with diodes D1 through D4, constitutes the AC step-down circuit. CX lowers the high voltage AC from the mains to a low voltage AC, which is subsequently...