This is a very simple LED dimmer circuit which has 2 transistors ... In a typical six segment disply, the maximum current must not exceed 1 ampere. For example: if one segment consumes 25 mA each, ...

(See circuit diagram above.) Using your wire, tape, battery, and LED, try one of the ideas in the diagrams below, or come up with your own design. Also, check out the troubleshooting tips below. If ...

The Fig. 1 example includes LED loads D1 + D2, D3 + D4, D5 + D6 and a power-supply output voltage, with a constant output current, providing the circuit input voltage (V IN). With each string ...

In this example, R1 represents a ballast resistor used in combination with the protection circuit. LED drivers may be susceptible to damage resulting from improper DC voltage levels and polarity.

Inspired by printed circuit boards, the building block of all electronics, a Dutch designer has created an LED-based light installation that draws upon the familiar etching pattern inside most ...

For discussion, let us use the simple example of a single cell lithium ... was once advantageous to opt for serial connected LED arrays for display backlighting, today the concept of using parallel ...