Stabilization circuit for low-voltage lighting
First Claim
1. A stabilization apparatus, comprising:
- a reactive load configured to draw a stabilization current from a transformer output;
a detection circuit configured to;
monitor a transformer signal indicative of the transformer output for a predetermined condition; and
couple the reactive load to the transformer output responsive to detecting the predetermined condition.
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Accused Products
Abstract
An electronic transformer stabilization circuit includes a detection circuit and a reactive load. The detection circuit may be configured to receive a transformer output or a transformer signal derived from the transformer output. The detection circuit may determine whether the transformer that generated the transformer output is an electronic transformer. The determination may be made based on the presence of absence of high frequency components in the transformer output. Responsive to determining that an electronic transformer generated the transformer output, the stabilization circuit may operate a switch to connect the reactive load across an output of the transformer. The reactive load may include an inductor and may be configured to draw a stabilization current from the transformer. The stabilization current may ensure that the total current drawn from the transformer exceeds an oscillation current required to maintain reliable operation of the electronic transformer.
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Citations
22 Claims
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1. A stabilization apparatus, comprising:
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a reactive load configured to draw a stabilization current from a transformer output; a detection circuit configured to; monitor a transformer signal indicative of the transformer output for a predetermined condition; and couple the reactive load to the transformer output responsive to detecting the predetermined condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A circuit stabilization method, comprising:
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monitoring a transformer for a characteristic indicative of an electronic transformer; responsive to detecting the characteristic, coupling a reactive load to the transformer; and responsive to not detecting the characteristic, decoupling the reactive load from the transformer. - View Dependent Claims (11, 16, 17)
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- 12. The circuit stabilization method of 11, wherein the characteristic comprises a component of the transformer signal having a frequency exceeding a predetermined minimum.
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14. The circuit stabilization method of 13, wherein the transformer signal comprises the rectified signal.
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15. The circuit stabilization method of 13, wherein the transformer signal comprises the transformer output.
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18. An apparatus, comprising:
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an inductor; a switch configured to respond to a detection signal by coupling the inductor to an output of a transformer; a bridge rectifier configured to generate a rectified signal in accordance with a transformer output of the transformer; and a detection circuit configured to generate the detection signal responsive to detecting, in a transformer signal, a frequency component having a frequency exceeding a threshold frequency. - View Dependent Claims (19, 20, 21, 22)
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Specification