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MOTOR START CIRCUIT

  • US 20080018293A1
  • Filed: 07/11/2007
  • Published: 01/24/2008
  • Est. Priority Date: 07/19/2006
  • Status: Active Grant
First Claim
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1. A motor start circuit for an induction motor, particularly a single phase AC induction motor, with a main winding and an auxiliary winding having two end connections supplied with current, mainly AC, via current supply connections, and with a start circuit device serving the purpose of stopping the current flow through the auxiliary winding after the start of the motor, and being connected via a conductor to a control device connected between the current supply connections, and with a preset timer device interacting with the start circuit device to stop the current flow through the auxiliary winding, as soon as a predetermined period after the start of the current flow has lapsed, wherein a voltage presetting device, with which a predetermined voltage value can be set, the start circuit device being disconnected if this value is exceeded, and a period duration presetting device, by means of which the predetermined period can be set, after the lapse of which the start circuit device is turned off by means of the control device, are connected to or integrated in the control device.

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