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Search results: 227   Output: 31-40
  1. JB Castro-Miguens, C Castro-Miguens EDN Protect circuits from high current until a capacitor charges A high-power offline supply is nothing more than a half- or full-bridge dc/dc converter. Rectifying the ac line yields a dc voltage that feeds the ...
    10-10-2016
  2. Alan Adamsky Electronic Design The two battery-simulator circuits described here can help you quickly test a battery charger under a normal battery condition and an over-discharged battery condition. The circuits let you set any voltage to see how ...
    Circuits » Measurement · Power » Texas Instruments » LM431, IRFP3703, MTW24N40
    13-09-2016
  3. Jesus Rosales, Linear Technology Design Note 545 Introduction Industrial, telecom, medical and automotive applications use a wide variety of regulated voltages to operate effectively, including high voltage and negative rails. When the designer is ...
    06-09-2016
  4. Peter Baxter EDN This Design Idea shows how to use a 63¢ (Q=1) microprocessor reset voltage detector IC in a relay coil drive circuit to greatly reduce the coil’s hold-in current. When asked to estimate the coil current of a small Omron ...
    06-09-2016
  5. Michael Dunn EDN Most electronics today requires multiple supply voltages four or more rails is not uncommon. But if you're using multiple, unsynchronized DC-DC converters, you've not only got a sub-optimal design, you're asking for ...
    24-08-2016
  6. Domenico Di Mario, Italy digilander.libero.it/bubblegate/ecircuit3.html This circuit was specifically designed to recharge alkaline cells. The unusual connection of the transistor in each charging unit will cause it to oscillate, on and off, thus ...
    24-08-2016
  7. Sam Young, Afshin Odabaee Linear Technology Design Note 546 Introduction The top side of a typical system board, such as a PCIe card, is densely populated with FPGAs/ASICs/ microprocessors, transceivers, connectors, memory ICs and DC/DC regulators, ...
    02-08-2016
  8. Chapin Wong, Maxim Integrated Application Note 5978 Certain applications require the use of a negative voltage reference, which is usually not readily available. A common way to generate a negative voltage has been to use an operational amplifier ...
    Circuits » Supply · Power » Maxim » MAX6010, MAX9820, MAX5491
    13-07-2016
  9. Bjoy Santos EDN Regardless of its color, an LED's light output varies as a function of forward current and ambient temperature. As Figure 1 shows, an LED's light output can vary by as much as 150% over its operating-current range. In response, a ...
    Circuits » Light · Power » Intersil » ISL29000, EL7630
    28-06-2016
  10. David Ng, Linear Technology Design Note 445 Introduction Once relegated to the hinterlands of low cost indicator lights, the LED is again in the spotlight of the lighting world. LED lighting is now ubiquitous, from car headlights to USB-powered ...
    28-06-2016
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