Circuits & Schematics - Measurement

Subsection: "Measurement"
  Including:
  Oscilloscopes
Search results: 523 Output: 1-10
  1. Christopher Paul
    Implementing a simple digital-to-analog converter (DAC) by cascading a single pulse width modulator (PWM) and an analog low-pass filter is nothing new. Nor is applying to a filter the sum of the outputs of a most significant 2 N -count PWM and a ...
    Aug 11, 2025
  2. David Prutchi
    Meters that indicate analog levels via a moving-pointer meter, a numeric display, or a column of LEDs typically occupy considerable panel area and require more than a casual glance to read. An indicator lamp or LED takes little space but indicates ...
    Jul 28, 2025
  1. Stephen Woodward
    Integrating ADCs that provide accurate results without requiring a precision integrator capacitor has been around for a long time. A venerable example is that multimeter favorite, the dual-slope ADC. That classic topology uses just one integrator ...
    Jul 21, 2025
  2. Jordan Dimitrov
    Analog designers often need matched resistors for their circuits [ 1 ]. The best solution is to buy integrated resistor networks [ 2 ], but what can you do if the parts vendors do not offer the desired values or matching grade? The circuit in ...
    Jul 16, 2025
  3. David A. Johnson
    I designed and built this thing many years ago. I published the hobby circuit in the now defunct “Radio Elecronics” magazine back in 1992. The electronic circuit injects a precise 1 Amp of current into any unknown resistor, up to about ...
    Jun 26, 2025
  4. Jayapal Ramalingam
    Designing an analog circuit can be a frustrating experience, as noted by Nick Cornford in his Design Idea (DI), “DIY RTD for a DMM” ( Ref. 1 ). With a fortnight’s struggle, I completed the design of 4 mA to 20 mA, two-wire ...
    Jun 11, 2025
  5. Stephen Woodward
    At its invention roughly four decades ago, STM (scanning tunneling microscopy) created a sensation because it was the first technology to make atomic-scale-resolution imaging a routine procedure. An essential requirement for the practical ...
    Jun 9, 2025
  6. Cor van Rij
    In April 2012, EDN published a circuit by John Fattaruso ( Ref. 1 ) that lets you quickly measure the drain-source saturation current and the pinch-off voltage of both an N-JFET and a P-JFET. The pinch-off voltage (V P ) is measured by inserting a ...
    May 15, 2025
  7. Jim Williams
    Circuits Measurement Analog Devices LT1004 LT319A LTC1052 LT1056
    Figure 1’s circuit is not as fast as some other circuits, but its 2.5 MHz output settles from a full-scale input step in only 3 us. This makes the circuit a good candidate for FM applications or any area where fast response to input movement ...
    May 14, 2025
  8. Peter Demchenko
    Almost every wall power supply has no indicator showing whether current is consumed by the load or not. It seems that this was a shortcoming that was not only noticed by me: I once saw the solution given in Figure 1. Figure 1. Wall power supply ...
    Apr 24, 2025