Circuits & Schematics: frequency meter - 7

Search for: "frequency meter"
Search results: 783 Output: 61-70   Including: frequency (715); meter (105).
  1. .. can, however, implement flyback BCM operation without these specialized parts. Manufacturers implement BCM in the variable-frequency versions of flyback converters, which are quasiresonant, ZVS (zero-voltage-switching) converters that ...
    08-06-2023
  1. .. them with small losses from a bypass switch. The 500 V, 2.7 Ω STP4NK50Z N-channel MOSFET switches at the line frequency. It turns on at a predetermined voltage, and it turns off at any higher voltage. It limits the voltage ...
    05-06-2023
  1. .. according to: I OUT_EFF = U LINE × 2π × f LINE × C2, where U LINE and f LINE are the line voltage and frequency, respectively. Recently, Murata introduced a very small and interesting monolithic ceramic chip ...
    02-06-2023
  2. .. motion sensors. By setting the time constant of the servo loop in Figure 1, the circuit responds at an appropriate low frequency for the system under control. The time constant you use for the servo loop depends on the dynamics of ...
    31-05-2023
  3. .. The other half of the comparator is available to generate the PWM portion of the converter. The ramp amplitude and frequency depend on the reference. An ordinary red LED can act as a low-cost reference. Its forward voltage of ...
    26-05-2023
  4. .. values of the prototype. Input resistance (all voltage ranges): 1 MΩ 1% Input capacitance: 20 pF (depends on layout) Frequency response: Flat from 20 Hz to 1 MHz: 1 dB at 10 Hz and 1.2 MHz. Voltage ranges: 1 10 100 mV 1 10 100 V; ...
    .. convenient to use toggle switches in this network, but of course, slide or rotary switches could be used. Peak detector and meter The peak detector is shown in Figure 5. Figure 5. A diagram showing the peak detector. It has three features ...
    25-05-2023
  5. .. root mean square (RMS) voltage of a sine-wave signal. There is a provision to insert external filters to provide special frequency responses. This feature also allows the meter to be used as two separate amplifiers with switched ...
    .. V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A. It may be surprising to offer a purely analog meter when digital meters are now so widely used. However, it isn’t well-known that digital meters have analog ...
    24-05-2023
  6. .. yet have enough battery power in reserve to answer an incoming call. For smallest size, most operate in the ultrahigh frequency range, where the design of a micropower receiver circuit is problematic. Familiar techniques, such as ...
    .. proof-of-concept at 445 MHz. This circuit contains a couple of improvements over the standard L/C-with-whip field-strength meter. Tuned circuits aren’t easily constructed or controlled at UHF, so a transmission line is used to match ...
    23-05-2023
  7. Circuits Measurement Analog Devices LT1460 LTC1150 LTC6943
    .. 1’s circuit achieves a wider dynamic range and higher output frequency than any commercially available voltage to frequency (V-F) converter. Its 100 MHz fullscale output (10% ...
    12-05-2023
  8. .. capacitance. The high voltage is rectified and filtered, forming the circuit’s output. C at the V C pin provides frequency compensation. The 100k path from L1 bootstraps Q1’s gate drive to about 10 V, ensuring ...
    12-05-2023

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