POWER CONVERTER HAVING A SYNCHRONOUS RECTIFIER
First Claim
1. A power converter, comprising:
- an inverter stage for receiving an input and generating an inverter output, wherein the inverter stage comprises an inverter switch configured to switch the inverter stage;
a synchronous rectifier stage for receiving the inverter output and for delivering an output of the power converter to a load, wherein the synchronous rectifier stage comprises a synchronous rectifier switch configured to switch the synchronous rectifier stage; and
a controller configured to control the output of the power converter by modulating the at least one of the inverter stage and synchronous rectifier stage on and off at a frequency less than a switching frequency of at least one of the inverter stage and the synchronous rectifier stage, the controller being further configured to adjust, independently of an amount of power delivered to the load, one or more of a duty cycle of the inverter switch, a duty cycle of the synchronous rectifier switch, and a phase between the switching of the inverter switch and the switching of the synchronous rectifier switch.
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Accused Products
Abstract
In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of soft-switchable power cells flexibly connected to receive an input signal in series and provide an output. The high frequency switching power converter may further include a controller for configuring the flexible connection and for controlling the power cells to receive the input signal. In an embodiment, each of the plurality of power cells may be separately controllable by the controller. Further, a portion of the plurality of power cells may be arranged with parallel outputs. Additionally, at least one of the plurality of cells may include one or more switched capacitors. In another embodiment, the at least one of the plurality of cells may include at least one switched capacitor and a DC/DC regulating converter.
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Citations
29 Claims
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1. A power converter, comprising:
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an inverter stage for receiving an input and generating an inverter output, wherein the inverter stage comprises an inverter switch configured to switch the inverter stage; a synchronous rectifier stage for receiving the inverter output and for delivering an output of the power converter to a load, wherein the synchronous rectifier stage comprises a synchronous rectifier switch configured to switch the synchronous rectifier stage; and a controller configured to control the output of the power converter by modulating the at least one of the inverter stage and synchronous rectifier stage on and off at a frequency less than a switching frequency of at least one of the inverter stage and the synchronous rectifier stage, the controller being further configured to adjust, independently of an amount of power delivered to the load, one or more of a duty cycle of the inverter switch, a duty cycle of the synchronous rectifier switch, and a phase between the switching of the inverter switch and the switching of the synchronous rectifier switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification