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Search results: 2,442   Output: 71-80
  1. Nick Ierfino Electronic Design It’s not always easy to design a ramp generator whose ramping frequency can be changed without manipulation of capacitors or inductors. Many ramp circuit designs are available, but they may not be flexible when ...
  2. Tom Bruhns EDN The novelty circuit in Figure 1 illustrates the extremely low gate-leakage current typical of modern power MOSFETs. You can find parts that, in a moderately dry environment, will hold their state for days at a time. In operation, if ...
    Circuits » Analogue Design » Vishay » IRF530, SI4490DY
  3. Sundaresan Sundararaj Electronic Design This idea describes a white-LED (WLED) driver circuit controlled by a simple ambient light sensor (ALS). A typical application would be a brightness control for cell-phone backlighting. On a very sunny day, ...
  4. Ken Yang Electronic Design RF gain blocks (amplifiers) are popular because they offer wide bandwidth, low noise, and ease of use. They're designed to operate with a fixed value of supply current because variations in supply current cause ...
    Circuits » Radio » Maxim » MAX4331
  5. Jean-Bernard Guiot EDN Controlling a small dc motor without speed control sounds like a trivial task; a switch or a relay should suffice. However, several problems accompany this approach. For one, the switch, because of the inductive load and the ...
  6. Stephan Goldstein, Analog Devices EDN The human eye's highly nonlinear response to light levels poses problems for designers of adjustable lighting. Simple hardware or software linear-control methods compress most of the apparent intensity ...
    Circuits » Analogue Design · Light » Analog Devices » AD589, AD8031
  7. Ken Whiteleather Electronic Design Current-mode control loops (particularly the popular 4- to 20-mA controls) are used in many industrial applications because of their immunity to induced EMI from motors, contactors, relays, and other sources. ...
  8. Dan Meeks EDN Most current microprocessors, DSPs, and field-programmable gate arrays integrate hardware and software resources that support either or both of two common interface standards SPI (serial-peripheral interface) and I 2 C ...
  9. Stephen Woodward EDN An earlier Design Idea illustrated one approach to that traditional headache for the analog designer: the dreaded ground loop ( Reference 1 ). That Design Idea described a simple and efficient multichannel circuit. But ...
  10. Clayton Grantham EDN Many process-control sensors, such as thermistors and strain-gauge bridges, require accurate bias currents. By adding a single current-setting resistor, R 1 , you can configure voltage-reference circuit IC 1 to produce a ...

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