Controllers for controlling currents to predetermined current references

A high-side switch is coupled to a power supply terminal and selectively coupled to ground via a conduction path. During an on state duration, the high-side switch can be enabled and the conduction path can be disabled. During an off state duration, the high-side switch can be disabled and the condu...

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Bibliographic Details
Main Author Lipcsei, Laszlo
Format Patent
LanguageEnglish
Published 25.12.2012
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Summary:A high-side switch is coupled to a power supply terminal and selectively coupled to ground via a conduction path. During an on state duration, the high-side switch can be enabled and the conduction path can be disabled. During an off state duration, the high-side switch can be disabled and the conduction path can be enabled. During a skip state duration, the high-side switch and the conduction path both can be disabled. A controller coupled to the high-side switch can control the on state duration and the skip state duration based on a current reference. The controller can further generate a control signal for controlling the high-side switch and the conduction path according to the on state duration and the skip state duration, and adjust an output current to the current reference according to the control signal.