US 12,456,970 B2
Power control circuit for managing power delivered to a load based on a control signal and a current sensor signal
Alberto Trentin, Telve di Sopra (IT); and Fausto Borghetti, Sant'Ambrogiodi Valpolicella (IT)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Oct. 6, 2023, as Appl. No. 18/482,622.
Prior Publication US 2025/0119133 A1, Apr. 10, 2025
Int. Cl. H03K 17/042 (2006.01); H03K 17/06 (2006.01); H03K 17/687 (2006.01)
CPC H03K 17/04206 (2013.01) [H03K 17/063 (2013.01); H03K 17/687 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A power control circuit comprising:
an input connection;
an output connection; and
a current sensor configured to generate a power signal corresponding to an electrical signal delivered from a power source to a load,
wherein the power control circuit is configured to:
receive, from a controller via the input connection, a control signal comprising a sequence of control signal pulses occurring at a control signal frequency;
generate an output signal based on the power signal, the sequence of control signal pulses, and the control signal frequency; and
deliver, via the output connection, the output signal to control a gate driver circuit to manage the power signal delivered from the power source to the load,
wherein the power control circuit further comprises a signal sum unit, and wherein the power control circuit is further configured to:
cause the signal sum unit to receive a first signal sum input based on the power signal from the current sensor;
cause the signal sum unit to receive a second signal sum input based on the control signal from the input connection;
generate, using the signal sum unit, a signal sum output based on the first signal sum input and the second signal sum input, wherein the signal sum output comprises a sum of the first signal sum input and the second signal sum input; and
generate the output signal based on the signal sum output.