Hewlett-packard Development Company, L.P.

Poying Chih

Peter Andrew Seiler

Chao-Wen Cheng

Ying-Chi Chou

Chien Fa Huang

Raymond Liu

Feng Ming Lu

Tsung Yen Chen

Shu Ming Kuo

Chieh-Shen Huang

An example redundant power supply system comprises a power supply input to receive power from a power supply; a buck-boost converter coupled to the power supply input; and a controller coupled to the buck-boost converter. The controller is to receive a power supply identification signal from the power supply. The controller is also to enable or disable the buck-boost converter based on the power supply identification signal.

Controlling buck-boost converters based on power supply identification signals

Examples for setting a system state as one of wakeable through a trigger and non-wakeable, are described. In one example, a value of an enabling time interval is obtained. Thereafter, it is determined if the enabling time interval has elapsed since the computing device has been in a low powered mode. Based on the determining, a system state is set as one of wakeable and non-wakeable through a trigger.

Non-wakeable system states

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Taipei, Taiwan

Poying Chih