Circuits & Schematics: frequency meter - 5
Search for: "frequency meter"
- .. all precision voltage-to-frequency converters (V-F) utilize charge pump based feedback for stability. These schemes rely on a capacitor ...29-08-2023
- .. will operate, if this is an appropriate spec for the circuit. Mentally, I give the circuit a low score if the operating frequency range is, in my opinion, limited. My nagging thought was “can the operating frequency range for ...24-08-2023
- .. filters, particularly at audio frequencies, usually take the form of active filters. These filters ...23-08-2023
- .. as the P OUT output, with a duty factor that goes from 0% to 100% as R2 is varied from 0 to V DD (fully CW). Oscillation frequency is affected by all three pots, but T OUT waveshape, amplitude, and P OUT duty factor are all mutually ...17-08-2023
- .. from a 15 V supply. It is configured as a current-source output to produce a substantially constant current at any frequency from 20 Hz to 100 kHz, with a limited reduction up to 150 kHz. The verifier schematic is shown in ...
.. verifier input to main amplifier output when operated in broadband mode. Example use cases for the magnetic field strength meter With all that in mind, let's explore some example use cases for this magnetic field strength meter. ...09-08-2023 - .. almost everywhere. However, convenient means of assessing the magnetic field strength over wide ranges of strength and frequency (20 Hz to 150 kHz) are not widely available. Despite the limitations, there are still many reasons why ...
.. without cutting or disturbing the cable. To begin, we will need two simple analog instruments: A hand-held magnetic field meter with a field sensor probe A calibration reference verifier source capable of producing a magnetic field ...08-08-2023 - .. that prevent entry of a cable or a probe. The circuit in Figure 1 reduces noise effects because its VFC (voltage-to-frequency converter) produces a PPM (pulse-position-modulated) output signal, V OUT , that integrates, or ...03-08-2023
- .. a triangular wave. The triangular wave passes through two narrow bandpass filters comprising IC 2A and IC 2B . The center frequency of the bandpass filters matches the 50-Hz line frequency. The sine-wave output from the filters passes ...31-07-2023
- .. OI 1 ’s output to provide a stable 4 V ratioed against the LTC1443’s 1.2 V 1% internal reference. Overall frequency response is dc to 10 kHz; input impedance is approximately 1 TΩ with less than 1-pA bias. The ...27-07-2023
- .. improve the response time by using faster diodes; a ground plane; low-inductance, short connections; and close, high-frequency decoupling. Figure 1. Two surge shunt paths, consisting of D 1 , D 2 , and D 3 to ground or D 4 , D 5 , ...26-07-2023
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