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Search results: 2,254   Output: 51-60
  1. Carl Pugh EDN Most circuits use bypass capacitors and can deliver substandard performance if the capacitors have poor pulse characteristics. Few if any articles cover how to test bypass capacitors for pulse characteristics. The circuit in Figure 1 ...
    Circuits » Analogue Design · Measurement » Fairchild » PN2222A, 2N3904, 2N3906
    01-12-2016
  2. Ron Mancini EDN One problem with standard FET gain-control circuits is increased noise when you use the FET as a part of a resistive attenuator in series with an op amp. This configuration attenuates the signal before amplification; hence, it ...
    01-12-2016
  3. Thomas Mosteller, Linear Technology EDN Despite the long-predicted demise of the 4- to 20-mA current loop, this analog interface is still the most common method of connecting current-loop sources to a sensing circuit. This interface requires the ...
    01-12-2016
  4. José M. Miguel Electronic Design Using a standard PC-sound card and straightforward circuit, you can implement low-cost on/off control of home appliances via the Internet. The system (Fig. 1) consists of a local computer (located where you ...
    25-11-2016
  5. John Wynne EDN Digital potentiometers, such as Analog Devices’ AD5160 , make excellent digitally controlled voltage dividers in applications in which 8-bit resolution is acceptable. This Design Idea shows how to use a CMOS DAC as a voltage ...
    Circuits » Analogue Design · Measurement » Analog Devices » AD5160, AD5415, AD7541A
    18-11-2016
  6. Sajjad Hajdar Electronic Design Most common current-limiting implementations have a voltage drop that’s too high for today's systems with their low-voltage supply rails; this design with its far lower voltage drop is a better fit. There ...
    18-11-2016
  7. Edward K. Miguel Electronic Design With this simple circuit configuration, an optoisolator can drive a standard 2N2222 transistor output high or low to indicate if the line voltage is 120 V or 220 V ac. For applications such as motor control or ...
    Circuits » Measurement » Vishay » H11AA1
    18-11-2016
  8. K Suresh EDN When you develop the prototype of a circuit using capacitors or when you replace an old, defective capacitor with a new one, you often need to know the value of the capacitor you use or replace. At times, the values printed on the ...
    09-11-2016
  9. Stephen Woodward EDN An inexpensive way to implement high-resolution digital-to-analog conversion is to combine microcontroller-PWM (pulse-width-modulated) outputs with precision analog-voltage references, CMOS switches, and analog filtering ( ...
    09-11-2016
  10. Stefano Salvatori EDN Transimpedance amplifier circuits are often used to convert photodiode current to a voltage signal. In the conventional transimpedance amplifier schematic of Figure 1, the current-to-voltage conversion factor is given by the ...
    03-11-2016
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