Circuits & Schematics - Measurement: oscilloscope - 5

41. Low power voltage-to-frequency converter makes a wireless probe for testing an inductive power supply
    Eliane Garnier Francis Rodes Salma Alozade
    Circuits Wireless Measurement Supply Texas Instruments LMC7211
    .. comparator's output delivers a PPM signal having a relatively short pulse of approximately 320 µsec. Figure 2. Oscilloscope measurements of the VFC show voltage across capacitor C 5 (upper trace) and comparator IC 2 ...
    Aug 3, 2023

42. 5V powered, 0.0015% linearity, quartz-stabilized V-F converter
    Jim Williams
    Circuits Measurement Analog Devices LT1461 LT1671 LT1884 LTC1043
    .. output frequency is constant over practical measurement intervals. Figure 3. Same trace assignments as Figure 2. Reduced oscilloscope sweep speed shows effect of timing uncertainty between loop and clock. Loop pulse position is ...
    Aug 29, 2023

43. Circuit lets you isolate and measure current
    Anton Mayer
    Circuits Measurement STMicroelectronics L272 LM358
    .. measuring its voltage, and converting the voltage to current. Unfortunately, that approach is sometimes impractical with an oscilloscope because one side of an oscilloscope probe connects to ground. Thus, you need to isolate the ...
    Nov 19, 2023
44. How to make a noise-free infrared obstacle detection module
    Hesam Moshiri
    Circuits Measurement Robots Vishay TSOP1738KA1
    .. transmission power which of course affects the detection range. The potentiometer R5 adjust the frequency. If you have an oscilloscope, you should be able to see a signal like the Figure 4 at the U1, pin-3 (output). Adjust the R5 to ...
    Apr 17, 2024
45. Simple discrete SE-to-differential precision in-amp circuit: High common-mode input range and 50% less power
    Chau Tran Jordyn Rombola
    Circuits Analogue Design Measurement Analog Devices AD629 AD7685 AD8421 ADA4807-2
    .. on the reference pin. This sets the output to midsupply and raises the common-mode voltage seen at the ADC inputs. An oscilloscope plot of the output waveforms is shown in Figure 2. Both in-amps are in a gain of 1 V IN is a 1 V ...
    Aug 8, 2024
46. Floating output, variable potential battery simulator
    Jim Williams
    Circuits Measurement Supply Analog Devices LT1010 LT1012 LT1021
    .. limit simulator output excursion within 30 µV. This error is so small that noise averaging techniques and a high gain oscilloscope preamplifier are required to resolve it. Figure 2. 150k-1µF compensation network provides ...
    Aug 22, 2024
47. 2 GHz active probe. Part 1 - Searching for solutions
    James Wilson
    Circuits Measurement Texas Instruments BUF802 OPA140 TPS7A39
    .. article is about my experiences building an open hardware single-ended active probe. For most of us, our experience with oscilloscope probes begins and ends with passive probes. These appear at first to be a simple resistive ...
    Jan 9, 2025
48. 2 GHz active probe. Part 2
    James Wilson
    Circuits Measurement Texas Instruments BUF802 OPA140 TPS7A39
    .. Brief 60W-18324-0, November 2004. Keysight Technologies. Improving Usability and Performance in High-Bandwidth Active Oscilloscope Probes, Application Note 5988-8005, July 2014. Texas Instruments, Achieving high-DC Precision and ...
    Jan 9, 2025
49. Simple logic probe uses bicolor LED
    Mark Shill
    Circuits Measurement Texas Instruments OPA2340
    .. tip is convenient, so that you can keep both the indicator and probe tip constantly in sight. When using a handheld DVM or oscilloscope probe, you must momentarily look away to read the logic level. In that instant, the probe can ...
    Apr 23, 2025

Sort by: relevance / date