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Search results: 120   Output: 81-90
  1. Anthony Smith EDN In 1938, the Journal of Scientific Instruments published details of a comparator circuit that converted a slowly varying input signal into an abrupt change in output voltage. Based on cross-coupled thermionic valves, the circuit ...
    03-12-2015
  2. Einar Abell EDN This Design Idea demonstrates a simple way to turn a step input into a ramp of nearly constant slew rate. The basic circuit uses a single op-amp; a circuit built on an integrator will typically require three. Figure 1 shows the ...
    11-11-2015
  3. Yakov Velikson Electronic Design The example analog-divider circuit presented in this article reduces the error to less than 0.02%, based on the resolution of both DACs Despite the availability of FPGAs and microcontrollers, the historical use of ...
    27-10-2015
  4. Susanne Nell EDN To measure high levels of direct current for overload detection and protection, designers frequently use either a current-shunt resistor or a toroidal core and Hall-effect magnetic-field sensor. Both methods suffer from drawbacks. ...
    22-10-2015
  5. Jose Blanes EDN Rectifier circuits based on semiconductor diodes typically handle voltage levels that greatly exceed the diodes' forward-voltage drops, which generally don't affect the accuracy of the rectification process. However, the rectified ...
    30-09-2015
  6. Sajjad Haidar Electronic Design When a MOSFET or IGBT gate-threshold voltage is higher than the available drive voltage, it's standard to use an op amp or other driver to bridge the difference. This circuit uses a basic optocoupler plus a few ...
    Circuits » Analogue Design · Power » TPL191B
    30-09-2015
  7. Vladimir Rentyuk EDN Detecting a rapidly falling signal over some threshold is important for ultrasonic or location equipment as well as for seismology systems. You can combine a rail-to-rail operational amplifier with a Schmitt-trigger logic gate ...
    30-09-2015
  8. Gyula Dioszegi EDN In 1971, Signetics later Philips introduced the NE555 timer, and manufacturers are still producing more than 1 billion of them a year. By adding a few components to the NE555, you can build a simple voltage-to-frequency converter ...
    Circuits » Analogue Design · Measurement » Philips » NE555, TL071
    24-09-2015
  9. Einar Abell EDN This Design Idea shows how to add positive feedback to a Darlington pair to create a Schmitt trigger with very high current gain (typically 10,000). I don't know of any similar circuits to compare this to except ICs. However, it ...
    24-09-2015
  10. Analog Devices Circuit Note CN-0151 Circuit Function and Benefits Digitally controlled current sources are critical functions in a variety of applications, such as power management, solenoid control, motor control, impedance measurement, sensor ...
    Circuits » Analogue Design · Supply » Analog Devices » AD5543, AD5446
    11-09-2015
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