Systems and methods for low-power lamp compatibility with an electronic transformer
First Claim
1. An apparatus for providing compatibility between a load having a reactive impedance during steady-state operation and a secondary winding of an electronic transformer driven by a leading-edge dimmer, comprising:
- a first circuit for causing the load to have a substantially non-reactive impedance when the first circuit is enabled;
a second circuit for enabling the first circuit to cause the load to have the substantially non-reactive impedance during a duration of time following start-up of the electronic transformer and for disabling the first circuit after the duration such that the load has the reactive impedance during steady-state operation of the load; and
the load comprising a driving circuit coupled to the first circuit, wherein the driving circuit is configured to drive a light source, wherein the driving circuit is configured to disable the first circuit responsive to a determination that the driving circuit has received sufficient electrical energy from the electronic transformer in order to drive the light source.
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Accused Products
Abstract
In accordance with embodiments of the present disclosure, a system and method for providing compatibility between a load having a reactive impedance during steady-state operation and a secondary winding of an electronic transformer driven by a leading-edge dimmer may include a first circuit and a second circuit. The first circuit may cause the load to have a substantially non-reactive impedance when the first circuit is enabled. The second circuit may enable the first circuit to cause the load to have the substantially non-reactive impedance during a duration of time following start-up of the electronic transformer and disable the first circuit after the duration such that the load has the reactive impedance during steady-state operation of the load.
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Citations
12 Claims
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1. An apparatus for providing compatibility between a load having a reactive impedance during steady-state operation and a secondary winding of an electronic transformer driven by a leading-edge dimmer, comprising:
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a first circuit for causing the load to have a substantially non-reactive impedance when the first circuit is enabled; a second circuit for enabling the first circuit to cause the load to have the substantially non-reactive impedance during a duration of time following start-up of the electronic transformer and for disabling the first circuit after the duration such that the load has the reactive impedance during steady-state operation of the load; and the load comprising a driving circuit coupled to the first circuit, wherein the driving circuit is configured to drive a light source, wherein the driving circuit is configured to disable the first circuit responsive to a determination that the driving circuit has received sufficient electrical energy from the electronic transformer in order to drive the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for providing compatibility between a load having a reactive impedance during steady-state operation and a secondary winding of an electronic transformer driven by a leading-edge dimmer, comprising:
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presenting the load to the electronic transformer as a substantially non-reactive impedance during a duration of time following start-up of the electronic transformer; presenting the load to the electronic transformer such that the load has the reactive impedance after the duration for steady-state operation of the load; and presenting the load to the electronic transformer such that the load has the reactive impedance responsive to a driving circuit integral the load for driving a light source indicating that the driving circuit has received sufficient electrical energy from the electronic transformer in order to drive the light source. - View Dependent Claims (12)
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Specification