The d.c. voltage transformer consists of a complementary-transistor, push-pull amplifier acting as a chopper to produce the required d.c. output level depending on the frequency and duty cycle of a square wave control signal applied to its bases. The square wave generator is coupled over a ...
For example, assume that the filter204has a pass-band of 385 Hz-415 Hz and that the waveform generator202initially outputs a square wave having a 50% duty cycle and fundamental frequency of 400 Hz. As described above, the 400 Hz fundamental frequency will pass through the filter204, and ...
Refer to the “VCO w/ programmable clock duty cycle” subsystem which implements the carrier generation. It uses a resettable integrator to generate a sawtooth waveform. The sawtooth waveform is then mapped into a triangular waveform. I attached a model of that subsystem here as well. Voltage...
3.Waveform: pure sine wave, THD <1.0%. 4.Max. capacity: Max up to 20000kVA 5.Duty Cycle: Continuous working time 60 mins at full power output. 6.Frequency adjustment sensitivity: 0.1Hz, instability <0.05%. 7.Power Supply: 380/220V ± 15%/50Hz ± 5%. ...
Adjustable Duty Cycle, 1% TO 99% Specifications Frequency Output: 0.01Hz to 2MHz Output Wave Types: Square, Wave, Triangle Voltage Supply: 10V to 26V Enclosure: DIP-16 Larger Quantities? Get Quote Price: $14.95 In Stock: YES Quantity: 2...
3.Waveform: pure sine wave, THD <1.0%. 4.Max. capacity: Max up to 20000kVA 5.Duty Cycle: Continuous working time 60 mins at full power output. 6.Frequency adjustment sensitivity: 0.1Hz, instability <0.05%. 7.Power Supply: 380/220V ± 15%/50Hz ± 5%. 8.Partial discharge lev...
In this paper, we develop a variable-frequency pulse width modulation (VFPWM) circuit for input control of 6.78-MHz resonant wireless power transfer (WPT) systems. The zero-voltage switching control relies on the adjustments of both duty cycle and switch
3225309Pulse wave generator with independent control of pulse repetition frequency and duty cycle1965-12-21Phelps331/150 Primary Examiner: Envall Jr., R. N. Attorney, Agent or Firm: Henderson & Strom Claims: I claim: 1. A variable voltage inverter comprising: ...
of the encoder. Incremental information (Figure6) consists of a two-bit (A, B) Gray code in quadrature (duty cycle of 50%). The difference between the two bits is 90 electrical degrees, but the direction of rotation is needed. A reference point indicates the completion of the revolution....
3.Waveform: pure sine wave, THD <1.0%. 4.Max. capacity: Max up to 20000kVA 5.Duty Cycle: Continuous working time 60 mins at full power output. 6.Frequency adjustment sensitivity: 0.1Hz, instability <0.05%. 7.Power Supply: 380/220V ± 15%/50Hz ± 5%. ...