DIRECT CURRENT POWER SUPPLY DEVICE
First Claim
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1. A direct-current power supply apparatus for outputting a predetermined output voltage by lowering an input voltage, the apparatus comprising:
- a control element to which the input voltage is inputted;
a first resistive element, provided in series with said control element, which outputs the output voltage; and
a second resistive element and a third resistive element, connected in series with each other, which are provided in parallel with said first resistive element,wherein a voltage at a midpoint between said second resistive element and said third resistive element is fed back to control said control element.
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Abstract
A direct-current power supply apparatus outputs a predetermined output voltage by lowering an input voltage. The apparatus includes a control element to which the input voltage is inputted, a first resistive element, provided in series with the control element, which outputs the output voltage, and second and third resistive elements, connected in series with each other, which are provided in parallel with the first resistive element. A voltage at a midpoint between the second resistive element and the third resistive element is fed back so as to control the control element.
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Citations
9 Claims
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1. A direct-current power supply apparatus for outputting a predetermined output voltage by lowering an input voltage, the apparatus comprising:
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a control element to which the input voltage is inputted; a first resistive element, provided in series with said control element, which outputs the output voltage; and a second resistive element and a third resistive element, connected in series with each other, which are provided in parallel with said first resistive element, wherein a voltage at a midpoint between said second resistive element and said third resistive element is fed back to control said control element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification