Current stabilizer with step-up transformer
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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Abstract
Constant-current regulators are required, for example, in systems for airfield lighting and have units for nominal-value presetting and actual-value detection as well as for actual value/nominal value comparison. According to the present invention, a constant-current regulator having a step-up transformer is designed in such a manner that the primary of the step-up transformer is assigned a unit for selection of a basic voltage, and in such a manner that a switch-mode regulator module supplies a power which is applied to the basic voltage.
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Citations
10 Claims
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1. In a lighting system a constant-current regulator comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification