Is the battery empty, or is there something wrong with the device? That’s always a difficult question when your walkman or some other battery-powered device appears to be dead when you switch it on.

The LM334 is not only an adjustable current source, but it is also a rectifier. Right on the front page of the TI data sheet are the words: “Reverse applied voltages of up to 20V will draw only a few ...

Abstract: In this paper, a constant current and constant voltage charging circuit through MPPT method, and its stability analysis is proposed. The input part is a solar cell array, the converter uses ...

Abstract: A Single LED is very small, and their luminance is related to the amount of driving current. Sufficient luminance for an illuminator requires many LEDs to be connected together and a ...

At first glance, [RobBest]’s constant current source looks old school. The box is somewhat old-fashioned, featuring switches and binding posts. Most importantly, there’s a large analog meter ...

Temperature is by far the most commonly measured physical parameter. With so many new ideas for connected devices in the works for consumer and industrial applications, you often need high-accuracy ...

TOKYO--(BUSINESS WIRE)--Toshiba Corporation (TOKYO:6502) today announced that it has launched an LED driver for LED display and illumination equipment that can illuminate 8 RGB-LEDs with a single IC.