To test a gigabit-speed data-recovery chip, you need a clock with a controllable duty cycle. Because most pattern and clock generators have a fixed duty-cycle output of 50%, the design may require a small circuit to distort the duty cycle...
To test a gigabit-speed data-recovery chip, you need a clock with a controllable duty cycle. Because most pattern and clock generators have a fixed duty-cycle output of 50%, the design may require a small circuit to distort the duty cycle...
Powering LEDs from a wide dc range – say, 30 to 380 V – without wasting a lot of power in the regulating block, is a difficult task when the LED current needs to be constant...
This design idea shows how easily “new flesh can be added to the old bones” and how some new functions can be added to the simple LED display that was published earlier...
Many applications involve the digital synthesis of three-phase sinusoidal waveforms, such as ac-motor drives, active power filters, and grid-voltage synchronizers, that use a microcontroller or a DSP for digital control. You can perform this synthesis by using conventional analog techniques...
These days, much of the news coverage and discussion in the semiconductor industry is about devices based on the new wide bandgap materials such as silicon carbide and gallium nitride. The medium-to-high power applications that used IGBTs still exist, as do the devices themselves...
Surprising facts, like “old fangled” 3-leg linear regulators (LM317, LM337, LM350, et al.) can be used in shunt regulator topologies can sometimes inspire “new fangled” circuit designs...
Streetlights, emergency lights, and security lights must automatically turn on when it gets dark. You base the control circuit on the resistance of a photoresistor or another LDR that varies with light intensity...
“The unfortunate relationship between servo systems and oscillators is very apparent in thermal-control systems,” said Linear Technology's Jim Williams...
The purpose of this Design Idea was to improve reliability, add new features, and replace a latching power switch with a momentary one...
A good manually adjusted audio gain stage is characterized by: low noise and low distortion, a 20 kHz bandwidth, a wide gain adjustment range...