Current reversible circuit control method for broadening output voltage range
A technology for outputting voltage and current, applied to output power conversion devices, converting DC power input to DC power output, and converting AC power input to DC power output, etc., which can solve problems such as errors
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[0032] The present invention proposes a current reversible circuit control method for widening the output voltage range, which is characterized in that the current reversible circuit obtains the output voltage U by setting the limit value of the duty cycle d in the control loop under the premise that the internal resistance of the battery is fixed. o the maximum value, broaden the output voltage U o range to achieve an output voltage of U o The adjustment range is the largest. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] figure 1 Shown is the schematic diagram of the current reversible circuit working in the step-down (Buck) state. When the circuit works in the step-down (Buck) state, the IGBT T 2 Keep off, IGBT T 1 work, power flows forward, the voltage source U i To emit power, the voltage source U out absorb power. According to energy conservation, we can get:
[0034] u i I...
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