US 11,799,375 B2
Power converter feedback
Juergen Neuhaeusler, Rosenheim (DE); and Tanvee Shailesh Pandya, Pulling (DE)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Dec. 30, 2020, as Appl. No. 17/138,525.
Claims priority of provisional application 62/960,511, filed on Jan. 13, 2020.
Prior Publication US 2021/0218335 A1, Jul. 15, 2021
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/1582 (2013.01) [H02M 1/0025 (2021.05); H02M 1/0003 (2021.05)] 17 Claims
OG exemplary drawing
 
1. A circuit, comprising:
an alternating current (AC) divider coupled between a first power converter input and a ground terminal, the AC divider having a first feedback output and configured to receive a first signal at the first power converter input;
a direct current (DC) divider coupled between a second power converter input and the ground terminal, the DC divider having a second feedback output and configured to receive a second signal at the second power converter input, in which the second signal has a lower voltage than the first signal;
a controller having a feedback input, a reference input, and a power converter control output, the feedback input coupled to the first and second feedback outputs, and the controller configured to:
receive a feedback signal at the feedback input;
receive a particular reference signal at the reference input; and
provide a control signal at the power converter control output responsive to a difference between the particular reference signal and the feedback signal; and
an amplifier having a first input coupled to the power converter, a second input coupled to the power converter control output of the controller, and an output coupled to the power converter.