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Current stabilizer with step-up transformer

  • US 5,751,566 A
  • Filed: 06/24/1996
  • Issued: 05/12/1998
  • Est. Priority Date: 12/23/1993
  • Status: Expired due to Fees
First Claim
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1. In a lighting system a constant-current regulator comprising:

  • a first unit for selecting a basic voltage;

    a step-up transformer including a first primary winding coupled to the first unit, wherein an additional power for supplementing the basic voltage is produced using one of a second primary winding of the step-up transformer and a second transformer which includes the second primary winding and a secondary winding;

    a switch-mode regulator module for regulating the additional power, wherein the switch-mode regulator module drives the second primary winding; and

    a drive circuit by which the switch-mode regulator module drives the second primary winding.

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