| CPC H02S 40/12 (2014.12) [H02S 40/32 (2014.12)] | 20 Claims |

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1. An apparatus comprising:
first terminals configured to interface with a power source;
second terminals configured to interface with a plurality of power devices; and
circuitry configured to:
in a power conversion mode of operation, convert voltage from the first terminals to the second terminals; and
in a heating mode of operation, convert voltage from the second terminals to the first terminals;
wherein the circuitry comprises a heating element configured to be in thermal proximity to a surface of the power source, and the heating element comprises a body diode.
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