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  1. This Design Idea describes a handy continuity tester with two modes of operation: It may sound if it detects continuity between its two probes, or it may sound when it detects no continuity. The second option permits testing for intermittent cable ...
    06-12-2022
  2. Circuits Supply Maxim MAX1735 MAX1818
    Linear voltage regulators offer a simple method of producing a constant current by connecting a fixed resistor between the regulator's output and ground nodes. The regulator's constant output voltage produces a constant current through the ...
    05-12-2022
China PCB Prototype and Fabrication Manufacturer
  1. Piezoelectric transducers find use in NDE (nondestructive-evaluation) applications. The PVDF (polyvinylidene-fluoride) transducer has many advantages, including a wide bandwidth and high sensitivity. These transducers require high-voltage and ...
    02-12-2022
  2. Circuits Supply Rohm BM2P129TF BM1Z102FJ
    This project provides AC voltage zero-cross timing detection and a DC voltage after diode rectification with high accuracy. Possible applications for such circuits are AC motor controllers, AC lamp controllers, AC Dimmer Controllers, Home ...
    30-11-2022
  1. To measure a zener diode’s breakdown voltage, you need a dc voltage source whose voltage exceeds that of the zener voltage. In Figure 1, resistor R SER provides voltage drop between V IN and V ZEN . In any case, V IN should exceed V ZEN . ...
    30-11-2022
  2. You would normally use a series linear regulator or a dc/dc converter to obtain 3 V dc from a higher supply. However, when breadboarding a concept, you may be able to use a shunt regulator, especially if a series regulator of the correct voltage is ...
    29-11-2022
  3. Mechanical bounce often occurs while trying to measure current or resistance on experimental materials or from routine switch-contact action. It can be a problem if you are trying to preserve the bounce or noise phenomenon within the measurement ...
    25-11-2022
  4. Circuits Supply Texas Instruments 1P1G3157QDBVRQ1 SN74HC175
    Several years ago, I published a design idea [ 1 ] (See Figure 1: “Cancel PWM DAC ripple with analog subtraction,) showing a simple trick for the cancellation of PWM output ripple. It employs passive summation of the usual PWM signal with its ...
    24-11-2022
  5. The circuit in Figure 1 is a high-power analog of the popular TL431 programmable shunt regulator. This two-terminal circuit is convenient when the drain of the P-channel FET is grounded, since it needs no isolation from a grounded heatsink. Figure ...
    24-11-2022
  6. This Design Idea expands the capabilities of a previously published one (Reference 1). The original version featured a current transformer whose secondary winding formed part of an oscillator's tank circuit. Under normal conditions, direct ...
    23-11-2022