| CPC H03K 17/6871 (2013.01) [H02P 27/06 (2013.01); H03K 2217/0063 (2013.01); H03K 2217/0072 (2013.01)] | 9 Claims |
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1. A drive circuit comprising:
a drive terminal;
a first source current source configured to generate a first source current that flows through the drive terminal;
a second source current source configured to generate a second source current that is added to the first source current;
a first sink current source configured to generate a first sink current that flows through the drive terminal;
a second sink current source configured to generate a second sink current that is added to the first sink current;
a logic circuit configured to generate a source drive command for operating the first source current source and a sink drive command for operating the first sink current source, in accordance with a clock, such that the first source current and the first sink current flow alternately, with dead times in between, each dead time being a period in which flows of the first source current and the first sink current are stopped; and
a control circuit configured to generate a source boost signal and a sink boost signal in accordance with the clock,
the source boost signal operating the second source current source such that the second source current starts flowing through the drive terminal immediately after a first one of the dead times ends, and then stops flowing, and
the sink boost signal operating the second sink current source such that the second sink current starts flowing through the drive terminal immediately after a second one of the dead times ends, and then stops flowing.
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