Power supply apparatus
First Claim
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1. A power supply apparatus, comprising:
- a power supply transformer;
an excitation circuit portion to be provided on a primary side of said power supply transformer and to excite said power supply transformer with an alternating current power supply; and
a control circuit portion provided on a secondary side of said power supply transformer, to start an operation by said power supply transformer in an excitation state, and to cause said excitation circuit portion to operate intermittently.
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Abstract
A power supply apparatus is provided with a power supply transformer; excitation circuit portions provided at a primary side of the power supply transformer, for exciting the power supply transformer by means of a commercial power supply; and control circuit portions provided at a secondary side of the power supply transformer, for starting operation by the power supply transformer having entered an excited state and for intermittently operating the excitation circuit portion 50. Thereby, power in a waiting state can be suppressed at maximum and energy saving can be executed further efficiently.
17 Citations
15 Claims
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1. A power supply apparatus, comprising:
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a power supply transformer;
an excitation circuit portion to be provided on a primary side of said power supply transformer and to excite said power supply transformer with an alternating current power supply; and
a control circuit portion provided on a secondary side of said power supply transformer, to start an operation by said power supply transformer in an excitation state, and to cause said excitation circuit portion to operate intermittently. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification