Control System for a Power Converter and Method of Operating the Same
First Claim
1. A control system, comprising:
- an opto-isolator circuit, including a resistor, configured to receive an output signal from a power converter and provide a feedback signal to a feedback node for said control system to provide a switch control signal for a power switch of said power converter; and
a current source configured to produce multiple voltage levels at said feedback node in accordance with said resistor, thereby enabling multiple functional uses of said feedback node.
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Accused Products
Abstract
A power converter employing a control system configured to make multiple functional use of a circuit node therein and method of operating the same. In one embodiment, the power converter includes a power train including at least one power switch. The power converter also includes a control system including an opto-isolator circuit, including a resistor, configured to receive an output signal from the power converter and provide a feedback signal to a feedback node for the control system to provide a switch control signal for the at least one power switch. The control system also includes a current source configured to produce multiple voltage levels at the feedback node in accordance with the resistor, thereby enabling multiple functional uses of the feedback node.
74 Citations
20 Claims
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1. A control system, comprising:
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an opto-isolator circuit, including a resistor, configured to receive an output signal from a power converter and provide a feedback signal to a feedback node for said control system to provide a switch control signal for a power switch of said power converter; and a current source configured to produce multiple voltage levels at said feedback node in accordance with said resistor, thereby enabling multiple functional uses of said feedback node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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receiving an output signal from a power converter; providing a feedback signal to a feedback node to provide a switch control signal for a power switch of said power converter; and producing multiple voltage levels at said feedback node, thereby enabling multiple functional uses of said feedback node. - View Dependent Claims (11, 12)
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13. A power converter, comprising:
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a power train including at least one power switch; and a control system, including; an opto-isolator circuit, including a resistor, configured to receive an output signal from said power converter and provide a feedback signal to a feedback node for said control system to provide a switch control signal for said at least one power switch, and a current source configured to produce multiple voltage levels at said feedback node in accordance with said resistor, thereby enabling multiple functional uses of said feedback node. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification