US 11,658,583 B2
Control circuit for a power converter
Richard Morrison, Cork (IE); Jonathan James Wilkinson, Cork (IE); and Phelim Bradley, Cork (IE)
Assigned to Advanced Energy Industries, Inc., Denver, CO (US)
Filed by Advanced Energy Industries, Inc., Denver, CO (US)
Filed on Nov. 11, 2021, as Appl. No. 17/454,549.
Application 17/454,549 is a continuation of application No. 16/734,236, filed on Jan. 3, 2020, granted, now 11,190,109.
Claims priority of provisional application 62/788,699, filed on Jan. 4, 2019.
Prior Publication US 2022/0069723 A1, Mar. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02M 3/335 (2006.01); H02M 1/14 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01)
CPC H02M 3/33592 (2013.01) [H02M 1/14 (2013.01); H02M 1/32 (2013.01); H02M 1/0045 (2021.05)] 20 Claims
OG exemplary drawing
1. 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.