VOLTAGE REGULATION CIRCUITS AND POWER SUPPLY DEVICES USING THE SAME
First Claim
1. A voltage regulation circuit for regulating a level of a supply voltage provided by an automotive battery, the voltage regulation circuit comprising:
- a selector receiving a plurality of predetermined voltages and selecting one of the plurality of predetermined voltages according to a control signal to serve as a first reference voltage; and
an error amplifier generating an error signal according to the first reference voltage and a feedback signal,wherein the feedback signal is related to the supply voltage, andwherein the voltage regulation circuit regulates the level of the supply voltage according to the error signal.
2 Assignments
0 Petitions
Accused Products
Abstract
A voltage regulation circuit is provided. The voltage regulation circuit regulates a level of a supply voltage provided by an automotive battery. The voltage regulation circuit includes a selector and an error amplifier. The selector receives a plurality of predetermined voltages and selects one of the plurality of predetermined voltages according to a control signal to serve as a first reference voltage. The error amplifier generates an error signal according to the first reference voltage and a feedback signal. The feedback signal is related to the supply voltage. The voltage regulation circuit regulates the level of the supply voltage according to the error signal.
4 Citations
20 Claims
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1. A voltage regulation circuit for regulating a level of a supply voltage provided by an automotive battery, the voltage regulation circuit comprising:
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a selector receiving a plurality of predetermined voltages and selecting one of the plurality of predetermined voltages according to a control signal to serve as a first reference voltage; and an error amplifier generating an error signal according to the first reference voltage and a feedback signal, wherein the feedback signal is related to the supply voltage, and wherein the voltage regulation circuit regulates the level of the supply voltage according to the error signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power supply device for an automobile comprising:
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an automotive battery, providing a supply voltage; and a voltage regulation circuit regulating a level of the supply voltage, wherein the voltage regulation circuit comprises; a selector, receiving a plurality of predetermined voltages and selecting one of the plurality of predetermined voltages according to a control signal to serve as a first reference voltage; and an error amplifier, generating an error signal according to the first reference voltage and a feedback signal; wherein the feedback signal is related to the supply voltage, and the voltage regulation circuit regulates the level of the supply voltage according to the error signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A voltage regulation circuit for regulating a level of a supply voltage provided by an automotive battery, the voltage regulation circuit comprising:
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an error amplifier generating an error signal according to a first reference voltage and a feedback signal, wherein the first reference voltage is at a first voltage level during a first regulation period and at a second voltage level during a second regulation period; and a driver regulating the level of the supply voltage according to the error signal, wherein the feedback signal is related to the supply voltage.
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20. A power supply device for an automobile comprising:
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an automotive battery providing a supply voltage; and a voltage regulation circuit regulating a level of the supply voltage, wherein the voltage regulation circuit comprises; an error amplifier generating an error signal according to a first reference voltage and a feedback signal, wherein the first reference voltage is at a first voltage level during a first regulation period and at a second voltage level during a second regulation period; and a driver regulating the level of the supply voltage according to the error signal; wherein the feedback signal is related to the supply voltage.
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Specification