Circuits & Schematics Supply

Tom Hornak EDN Sometimes, you need to remotely turn on or off a two-state system, such as a light, from multiple points. You could connect simple pushbutton switches in parallel to a single-line bus. However, if the bus simply controls a toggle ...

Zhongming Ye, Analog Devices Design Note System designers are asked to produce smaller, higher efficiency power supply solutions to meet the demands of power thirsty SoCs and FPGAs across all industries. The space available for the power supply ...

TA Babu EDN LED technology is opening the door to a variety of high-power-illumination applications. The circuit in Figure 1 can let you know when ac power is available. To drive a power LED from the ac line requires a converter or a similar ...

EDN You sometimes need a current source for supply voltages as high as 1000 V or more. This current source can be useful for ripple-voltage reduction when the current source’s high-impedance node feeds an electrolytic capacitor to effectively ...

Bogdan Raducanu EDN Testing power supplies or discharging batteries usually requires a constant-current load. Sometimes, however, you must study the behavior when the load is a resistor. Using a highpower potentiometer is an expensive approach that ...

Tim Regan, Linear Technology Design Note 495 Introduction A circuit breaker protects sensitive load circuits from excessive current flow by opening the power supply when the current reaches a predetermined level. The simplest circuit breaker is a ...

Mark Vitunic, Analog Devices Analog Dialogue Question: My application doesn’t have a battery. Is it possible to power it wirelessly? Answer: Yes, sure a simple integrated nanopower solution originally designed for energy harvesting is ...

by John Betten EDN Controlling the brightness of LEDs requires a driver that provides a constant, regulated current. To achieve this goal, the driver topology must be able to generate a large enough output voltage to forward bias the LEDs. So, what ...

Ajmal Godil Electronic Design Consumer-based LED applications have really taken off. You now find them in home lighting, airplane cabin lights, automobile lights, MP3 players, and elsewhere. In the past, most LED drivers were based on some sort of ...

Panagiotis Kosioris EDN Several safety-critical solenoids in a laser-measurement system on an automotive-assembly line required protection from internal overheating during normal operation. After a 60-sec activation, the solenoids required 180 sec ...