Circuits & Schematics - 10

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  1. 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
  2. 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
  3. 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
  4. 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
  1. 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
  2. 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
  3. 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
  4. Michael Gurovich, USA In today’s age, measuring devices with digital indication of measurement results, such as Digital Calipers, Micrometers, Dial Indicators (DI), are becoming widely popular. Most of these devices also have a port for ...
    25-07-2019
  5. Dan Awtrey Electronic Design By pairing a visible-light LED (VLED) with a depletion-mode MOSFET, you can create an efficient, controllable current-source driver. High-brightness visible-light LEDs (VLEDs) require a constant-current source. This ...
    25-07-2019
  6. Anthony Smith EDN The circuit in Figure 1 lets you switch high-voltage power to a grounded load with a low-voltage control signal. The circuit also functions as a submicrosecond circuit breaker that protects the power source against load faults. ...
    10-07-2019