Patent ID: 11942866
Assignee: CYPRESS SEMICONDUCTOR CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. The IC controller of claim 10, wherein the error amplifier further comprises a temperature compensation circuit to maintain accuracy of the output current by tracking transconductance variation according to temperature-to-load-current variation, the temperature compensation circuit comprising:
a bandgap-to-current circuit to convert a bandgap voltage reference of the buck-boost converter to a bandgap-dependent current; and
a beta multiplier coupled to the bandgap-to-current circuit, the beta multiplier to:
generate a load bias current, which is based on the bandgap-dependent current, to bias a current source that is coupled to the output pin; and
generate a temperature-dependent bias current to bias current output by at least one of the first transconductance amplifier or the second transconductance amplifier.