Circuits & Schematics - 5

Search results: 2,555 Output: 41-50
  1. José M Miguel EDN Testing audio-noise-reduction circuits, PLLs (phase-locked loops), and audio-frequency filters may require a noisy sine wave, one that is summed with white noise. Using a typical computer sound card, free software, and an ...
    03-09-2019
  2. Ferran Bayes EDN A previous design idea is reminiscent of a similar but somewhat simpler circuit (see [1]). This circuit delivers a rectangular signal with duty cycle varying between 0 and 100% in response to an input signal varying from 0 to 5 V ...
    03-09-2019
  3. John Guy, Maxim Integrated EDN The increasing acceptance of Class D amplifiers has helped them gain market share from their linear Class AB brethren. That acceptance is no surprise; the advantages of Class D amplifiers are legion, but such ...
    03-09-2019
  4. Circuits Supply ON Semiconductor MMBT2222A MMBT2907A
    Fabien Dubois EDN The circuit in this Design Idea lets you set a well-controlled voltage rate of change, often expressed as the differential dV/dt (instantaneous rate of voltage change over time in volts per second). You can vary the sensitivity ...
    29-08-2019
  1. Tom Gross EDN It can be difficult to generate a high-voltage supply from a medium-voltage input, especially if you need a surface-mount design. It is difficult to find surface-mount components with the necessary specs, especially the transformer ...
    13-08-2019
  2. Gheorghe Plasoianu EDN The single-ended primary-inductor converter (SEPIC) is a well-known type of DC/DC converter that, in its standard form, can generate an output voltage greater than, less than, or equal to its input voltage, and of the same ...
    13-08-2019
  3. Circuits Measurement Maxim MAX1618 MAX1661 MAX4626
    Jim Christensen EDN As higher levels of power dissipation underscore the need for cooling, more and more fans are finding their way into small electronic enclosures. The dust that fans pull into these enclosures can, however, cause major problems ...
    07-08-2019
  4. Eugene Palatnik EDN Certain measurement applications, such as for pH (acidity) and bio-potentials, require a high-impedance buffer amplifier. Although several semiconductor manufacturers offer amplifier ICs featuring low bias and offset-input ...
    07-08-2019
  5. Vincent Himpe EDN The circuit in Figure 1 provides a safety interlock that checks the actuation of two pushbuttons before enabling a relay. When you push both buttons, the circuit actuates the relay. At that point, you can release one of the ...
    31-07-2019
  6. Chuck Wojslaw EDN The three-amplifier implementation of the state-variable filter in Figure 1 provides for second-order bandpass, highpass, and lowpass responses. The strength of the circuit, however, is in the bandpass response (V OUT /V IN ), in ...
    31-07-2019