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In this paper, a Boost type control strategy is proposed to solve the problems of large power backflow and low conversion efficiency in dual active bridge bidirectional DC-DC converter which occur in the traditional phase-shifted control strategies. In the condition that the main topology circuit is not changed, the control strategy proposed in this paper can make the circuit work in Boost state every...
Aiming at solving the problem of low efficiency of energy transmission in bidirectional energy storage system under the condition of large voltage difference between DC bus and battery, a novel phase angle modulation control strategy based on dual active bridge DC-DC converter is proposed in this paper. Under the control strategy, the energy stored in the inductor reaches the maximum during each switching...
CRM Boost PFC converter features zero-current turn-on for the switch and no reverse recovery in diode. However, its switching frequency varies over a wide range, which leads to the efficiency deterioration and the EMI filter design complexity. In this paper, a minimum switching frequency variation range control (MFVC) strategy is proposed by injecting the optimal 3rd harmonic into the input current...
<?Pub Dtl?>Considering the tradeoff between efficiency and output ripple over a wide load range, a monolithic dc–dc buck converter with switch-on-demand modulation (SODM) and switch size control (SSC) is presented in this paper. SODM achieves a hybrid mode of pulse skip and pulse width modulation (PWM) without mode detection circuit. The converter's on time is adaptively adjusted with the load...
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