Control circuit for a power converter
AssigneeAdvanced Energy Industries, Inc.
InventorsRichard Morrison, Jonathan James Wilkinson, Phelim Bradley
Life of this patent
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Abstract
The invention provides a control circuit for controlling the operation of a power converter having a switch connected to an output of the power converter, said control circuit comprising a first amplifier for sensing an output voltage of the power converter and a second amplifier configured to derive a frequency compensated error signal output, to provide a frequency control compensation loop to an input of the power converter and the output of the second amplifier is connected to the switch of the power converter.
Claims21
(canceled)
A control circuit for controlling the operation of a power converter having a switch connected to an output of the power converter, the control circuit comprising:
- a first amplifier configured to sense an output voltage of the power converter;
- and
- a second amplifier configured to derive a frequency compensated error signal output, Vf1, to provide a frequency control compensation loop to an input of the power converter and an output, Vg, of the second amplifier is connected to the switch of the power converter;
- wherein the switch is a MOSFET switch and connected in series with the output of an isolated ac/dc converter.
A control circuit for controlling the operation of a power converter having a switch connected to an output of the power converter, the control circuit comprising:
- a first amplifier configured to sense an output voltage of the power converter;
- a second amplifier configured to derive a frequency compensated error signal output, Vf1, to provide a frequency control compensation loop to an input of the power converter and an output, Vg, of the second amplifier is connected to the switch of the power converter;
- and
- a current limit protection module configured to differentially amplify a voltage across a current sense resistor, Vcs, using a third amplifier.
A control circuit for controlling the operation of a power converter having a switch connected to an output of the power converter, the control circuit comprising:
- a first amplifier configured to sense an output voltage of the power converter;
- a second amplifier configured to derive a frequency compensated error signal output, Vf1, to provide a frequency control compensation loop to an input of the power converter and an output, Vg, of the second amplifier is connected to the switch of the power converter;
- and
- a microcontroller configured to communicate and enable the output voltage and current limit references to be varied.
Dependencies are inferred from the claim text.