Circuits & Schematics Measurement: oscilloscope - 3

21. Power Meter is ±1% Accurate
    Circuits Measurement Maxim MAX427 MAX4372
    .. offset adjustment : Connect a 1-kHz, 5 V p-p sinusoidal signal to the Y input, and connect the X input to ground. Using an oscilloscope to monitor the output, adjust R X for an ac null (zero amplitude) in the sinusoidal signal. ...
    31-05-2017

22. 1-Hz to 100-MHz VFC features 160-dB dynamic range
    Circuits Measurement Linear Technology LT1460 LTC1150 LTC6943
    .. C 1 resets IC 2A 's output to its high state, and the ramp-and-reset action continues. Figure 2. On a 700-MHz real-time oscilloscope, the oscillator-core waveforms at a 40-MHz operating frequency show the ramp-and-reset waveform ...
    19-01-2017

23. Build your own bypass-capacitor tester
    Circuits Analogue Design Measurement Fairchild PN2222A 2N3904 2N3906
    .. are as short as possible and as close as possible to the copper-clad board. The layout is such that you don't need the oscilloscope probe's ground lead; the ground on the probe contacts a ground post on the pc board. The ...
    01-12-2016
24. Test Setup Checks Transistors' hFEs When Tight Control Is Important
    Circuits Measurement
    .. test current to the DUT. U2 then raises V CE(DUT) to 2 V and regulates it. Figure 3. The falling edge of Q A triggers an oscilloscope, which uses V RB1 (trace A) and V RC1 (trace B) to calculate h FE (trace D). The high-to-low ...
    31-05-2016
25. The Art of Waves: Images on an oscilloscope
    Circuits Measurement
    .. the magic of waves. Despite jaw-dropping computer graphic technologies, creating Lissajous patterns and other images on a oscilloscope is still exciting. Many online pages explain them in detail and show several popular patterns. ...
    10-03-2016
26. High-impedance FET probe extends RF-spectrum analyzer's usable range
    Circuits Analogue Design Measurement Texas Instruments OPA656
    .. an alternative: an inexpensive and well-protected unity-gain probe that presents the same input impedance as a basic bench oscilloscope and can drive the spectrum analyzer's 50 Ω input impedance. The probe has a gain of 0 ...
    14-02-2016
27. Transient load gives power systems a workout
    Circuits Measurement Power Linear Technology LT1935ES5
    .. high bandwidth means for measuring the pulsing current. A straight 50 Ω coax can be connected directly to an oscilloscope input for monitoring current with a scale of 1 mV/A. The voltage measurement should also be made ...
    04-11-2015
28. Facilitate oscilloscope debug of small microcontroller systems
    Circuits Measurement Microcontrollers Usage
    Josef Valasek EDN If you develop an application on a small microcontroller, your diagnostic tools for debugging of the program code might be very limited. This Design Idea introduces a simple debugging routine for plotting the binary value of one ...
    20-05-2015
29. Phase Noise and Additive Phase Jitter Analysis Using the NB3V8312C
    Circuits Measurement Networks Theory Application Notes Digital ON Semiconductor NB3V8312C
    .. Phase. Jitter. Jitter - Jitter is the short-term frequency instability and is normally seen in the time domain on an oscilloscope. Phase Noise - Phase Noise is a ratio of signal power to noise power normalized to a 1 Hz ...
    30-11-2013
30. AVR frequency meter - from 1Hz to 10MHz
    Circuits Measurement Microcontrollers Usage Atmel ATtiny2313
    .. 100 ppm which is not suitable for any accurate measurements. If we have another device to measure the exact frequency (eg oscilloscope with hardware measurement), we can calibrate our circuit by adding a little trimming (cap pot) ...
    17-05-2013

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