Patent ID: 11888394
Assignee: DIALOG SEMICONDUCTOR (UK) LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A switching power converter pulse width modulator, comprising:
an error signal generator configured to generate an error signal that is proportional to a difference between an output voltage and a reference voltage;
a ramp signal generator configured to generate a ramp signal;
a clock-edge generator configured to assert an enable signal for an enable period responsive to a level-shifted version of the ramp signal being equal to the error signal, wherein the level-shifted version of the ramp signal is greater than the ramp signal by an offset voltage; and
a sense-amplifier-based comparator configured to be enabled by the assertion of the enable signal during the enable period, wherein the sense-amplifier-based comparator is further configured to assert a comparator output signal responsive to the ramp signal being equal to the error signal only while the sense-amplifier-based comparator is enabled.