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US 4,903,186 AGranted
Transformer-rectifier with ripple filter
OwnerKeats A. Pullen, Jr.inventor
Life of this patent
Estimating the term…
Abstract
A power supply having a low ripple component to minimize waste power and improve efficiency. In a full wave power supply, additional circuitry is provided for decreasing the time between charging episodes of the output capacitor. The circuitry is comprised of additional capacitors and diodes, and is connected between taps on the transformer and the output capacitor.
Claims7
A power supply which results in a low output voltage ripple, comprising,
- a transformer which is center-tapped and has one intermediate tap within each transformer half,
- rectifier means connected to the output of the transformer, said rectifier means including at least one diode and an output capacitor, and
- circuit means connected between the intermediate taps and the output capacitor for increasing the frequency at which the output capacitor is charged.
A power supply which results in a low output voltage ripple, comprising,
- a transformer,
- full wave rectifier means connected to the output of the transformer which includes at least two diodes and an output capacitor, wherein the transformer is center-tapped and has one intermediate tap within each transformer half,
- circuit means connected between said intermediate taps and said output capacitor for increasing the frequency at which the output capacitor is charged.
Dependencies are inferred from the claim text.