Forward converter
AssigneeNXP B.V.
InventorsThomas Dürbaum, Georg Sauerländer, Cornelis Johannes Adrianus Schetters
Life of this patent
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Abstract
Usually, power supplies are not capable of switching off part of the outputs of a main power supply during stand-by. Due to this, stand-by power supplies are used in addition to operation power supplies. Consistent with an example embodiment, a forward converter is provided, including switches in the rectifier circuit thereof. Due to this, the rectifier circuits may be selectively switched on and off. Advantageously, this may allow that the main outputs of such a forward converter are switched off while on stand-by.
Claims15
A forward converter adapted for connection to a device, the forward converter comprising:
- a first rectifier circuit having a first output;
- a second rectifier circuit having a second output;
- wherein a first switch is provided in the first rectifier circuit;
- and
- wherein a second switch is provided in the second rectifier circuit;
- wherein, by switching the first and second switches, the first and second outputs may be selectively switched off,
- wherein, when the first switch is closed and the second switch is open, the first rectifier provides an operation voltage for the device;
- and
- wherein, when the first switch is open and the second switch is closed, the second rectifier provides a stand-by voltage for the device.
Method of operating a forward converter adapted for connection to a device, the forward converter having a first rectifier circuit having a first output and a second rectifier circuit having a second output,
- wherein a first switch is provided in the first rectifier circuit, and
- wherein a second switch is provided in the second rectifier circuit, the method comprising the step of
- selectively switching off the first and second outputs by switching the first and second switches such that when the first switch is closed and the second switch is open, the first rectifier provides an operation voltage for the device, and when the first switch is open and the second switch is closed, the second rectifier provides a stand-by voltage for the device.
Dependencies are inferred from the claim text.