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US 2022/0021295 A1Published application
Low weight isolated integrated single-stage ac-dc led driver
AssigneeGoodrich Corporation
InventorsIgnacio CASTRO, Douglas ARAUJO PEDROSO
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Abstract
An integrated single stage ac-dc driver for powering LED loads includes a boost converter operating in a Discontinuous Conduction Mode, DCM, comprising a half-bridge, and a Zeta Asymmetrical Half Bridge, ZAHB, integrated with the boost converter such that the boost converter and the ZAHB share the half-bridge to perform power factor control, PFC, with a fixed duty cycle and control an output voltage.
Claims14
An integrated single stage ac-dc driver for powering LED loads comprising
- a boost converter operating in a Discontinuous Conduction Mode, DCM, comprising a half-bridge;
- a Zeta Asymmetrical Half Bridge, ZAHB, integrated with the boost converter such that the boost converter and the ZAHB share the half-bridge to perform power factor control, PFC, with a fixed duty cycle and control an output voltage.
A method, the method comprising
- operating a boost converter in a Discontinuous Conduction Mode, DCM, the boost converter comprising a half-bridge;
- integrating a Zeta Asymmetrical Half Bridge, ZAHB, with the boost converter such that the boost converter and the ZAHB share the half-bridge to perform power factor control, PFC, with a fixed duty cycle and control of an output voltage.
Dependencies are inferred from the claim text.