Linearly regulated power supply
First Claim
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1. A linearly regulated power supply comprising:
- a voltage divider module capable of accepting a backup voltage and providing a voltage reference;
a controlling module capable of accepting the voltage reference and providing a controlling voltage; and
a regulating module capable of receiving the controlling voltage and regulating a core voltage down to a load voltage according to the controlling voltage so as to provide the load voltage to a load.
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Abstract
A linearly regulated power supply is provided for providing a load voltage to a load. In a preferred embodiment, the linearly regulated power supply includes: a voltage divider module for receiving a backup voltage and then providing a voltage reference; a controlling module for receiving the voltage reference and then providing a controlling voltage; and a regulating module receiving the controlling voltage and then regulating a core voltage down to a load voltage, the regulating module providing the load voltage to a load. The linearly regulated power supply is capable of reducing the power of the transistor, and has a higher efficiency.
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Citations
13 Claims
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1. A linearly regulated power supply comprising:
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a voltage divider module capable of accepting a backup voltage and providing a voltage reference;
a controlling module capable of accepting the voltage reference and providing a controlling voltage; and
a regulating module capable of receiving the controlling voltage and regulating a core voltage down to a load voltage according to the controlling voltage so as to provide the load voltage to a load. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A linearly regulated power supply comprising:
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a plurality of resistors connected to each other in series, the resistors receiving a backup voltage and then providing a voltage reference;
an operational amplifier for receiving the voltage reference and then providing a controlling voltage; and
a MOSFET (metal-oxide-semiconductor field-effect transistor) receiving the controlling voltage and then regulating a core voltage down to a load voltage, the regulating module providing the load voltage to a load. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification