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MOTOR DRIVE CIRCUIT

  • US 20130222309A1
  • Filed: 02/28/2013
  • Published: 08/29/2013
  • Est. Priority Date: 02/28/2012
  • Status: Abandoned Application
First Claim
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1. A motor drive circuit, comprising:

  • a low dropout (LDO) regulator configured to receive a supply voltage and to provide a regulated voltage;

    a power switch circuit configured to receive the supply voltage and to receive the regulated voltage from the LDO regulator; and

    a level shift circuit configured to receive power from the power switch circuit, to receive an input signal, and to provide an output signal to a a voltage difference generating circuit based on the input signal and the power from the power switch circuit,wherein the power switch circuit includes a first state and a second state,wherein the power switch circuit is configured to provide the regulated voltage from the LDO regulator to the level shift circuit in the first state, andwherein the power switch circuit is configured to provide the supply voltage to the level shift circuit in the second state.

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