High efficiency power converter
First Claim
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1. A power converter, comprising:
- a primary transformer winding circuit having at least one primary winding;
a secondary transformer winding circuit comprising;
at least one secondary winding coupled to the at least one primary winding;
a controlled rectifier transistor, each primary winding having a voltage waveform with transition times which are short relative to the on-state and off-state times of the controlled rectifier; and
a capacitive divider circuit, a signal controlling the controlled rectifier transistor being derived from the capacitive divider circuit.
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Abstract
A power converter nearly losslessly delivers energy and recovers energy from capacitors associated with controlled rectifiers in a secondary winding circuit, each controlled rectifier having a parallel uncontrolled rectifier. First and second primary switches in series with first and second primary windings, respectively, are turned on for a fixed duty cycle, each for approximately one half of the switching cycle. Switched transition times are short relative to the on-state and off-state times of the controlled rectifiers. The control inputs to the controlled rectifiers are cross-coupled from opposite secondary transformer windings.
101 Citations
2 Claims
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1. A power converter, comprising:
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a primary transformer winding circuit having at least one primary winding; a secondary transformer winding circuit comprising; at least one secondary winding coupled to the at least one primary winding; a controlled rectifier transistor, each primary winding having a voltage waveform with transition times which are short relative to the on-state and off-state times of the controlled rectifier; and a capacitive divider circuit, a signal controlling the controlled rectifier transistor being derived from the capacitive divider circuit.
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2-26. -26. (canceled)
Specification