Category: Resonant Converter
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Operation of Phase-shift full-bridge converter (PSFB)
The PSFB circuit with the phase-shift PWM control method can be divided into 10 operating modes. The typical operating signals and waveforms are given below. Mode-1 (t0 -t1): Duty cycle loss mode Mode-2 (t1 – t2): Power Delivery Mode Mode-3 (t2 – t3): Dead Zone Mode After capacitors fully charge and discharge, the discharged capacitor…
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Phase-shift Full-bridge Converter with Center-tapped transformer for step-down applications
Circuit Description The circuit diagram is shown below. It is a combination of full-bridge inverter (DC-AC), high-frequency transformer, and full-wave rectifier (AC-DC) with diodes DC input is given to full-bridge inverter which converts the DC to high frequency (HF) AC –> HF AC is goes to HF transformer and it stepup/stepdown as per design requirement…
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Phase-shift Full-bridge (PSFB) Resonant Converter Topologies in EV charger
These are the mostly used PSFB topologies in different applications PSFB with Full-wave Rectifier The circuit diagram is shown below It is combination of full-bridge inverter (DC-AC), high-frequency transformer, and full-wave rectifier (AC-DC) with diodes. PSFB with Full-bridge Rectifier The circuit diagram is shown below It is combination of full-bridge inverter (DC-AC), high-frequency transformer, and…
