SYSTEM AND METHOD FOR A SWITCHED MODE CONVERTER
First Claim
Patent Images
1. A converter, comprising:
- a half-bridge circuit configured to receive a bipolar AC signal without rectification and comprising a first bidirectional switch and a second bidirectional switch coupled in series to form an output of the half-bridge circuit, each of the first bidirectional switch and the second bidirectional switch being configured to accommodate positive and negative voltages across the bidirectional switch,a transformer, anda resonant tank coupled between the output of the half-bridge circuit and a primary winding of the transformer.
1 Assignment
0 Petitions
Accused Products
Abstract
In accordance with an embodiment, a converter includes: a rectifying stage having a first supply terminal and a second supply terminal, the first supply terminal and the second supply terminal configured to receive a bipolar ac signal from an AC power source, the rectifying stage including a half-bridge circuit coupled between the first supply terminal and the second supply terminal, a transformer, and a resonant tank coupled between an output of the half-bridge circuit and a primary winding of the transformer; and a DC-DC converter stage coupled between the rectifying stage and an output terminal.
-
Citations
39 Claims
-
1. A converter, comprising:
-
a half-bridge circuit configured to receive a bipolar AC signal without rectification and comprising a first bidirectional switch and a second bidirectional switch coupled in series to form an output of the half-bridge circuit, each of the first bidirectional switch and the second bidirectional switch being configured to accommodate positive and negative voltages across the bidirectional switch, a transformer, and a resonant tank coupled between the output of the half-bridge circuit and a primary winding of the transformer. - View Dependent Claims (2, 3, 6, 7, 8, 12, 14, 15, 16, 17, 18, 19, 20, 21, 34, 35)
-
-
4. (canceled)
-
5. (canceled)
-
9-11. -11. (canceled)
-
13. (canceled)
-
22. A method of operating a converter, the method comprising:
-
receiving a bipolar AC signal from an AC power source with a half-bridge circuit coupled to a reason tank without first rectifying the bipolar AC signal, wherein the resonant tank comprises a first resonant capacitor, a first resonant inductor and a second resonant inductor, wherein the half-bridge circuit comprises a first bidirectional switch and a second bidirectional switch coupled in series, each of the first bidirectional switch and the second bidirectional switch being configured to accommodate positive and negative voltages across the bidirectional switch; activating the resonant tank; rectifying an output of the half-bridge circuit with a switching network to produce a rectified signal; galvanically isolating the half-bridge circuit from the switching network; and converting the rectified signal to a first voltage with a DC-DC converter. - View Dependent Claims (23, 24, 27, 28, 36, 37)
-
-
25. (canceled)
-
26. (canceled)
-
29. A resonant converter, comprising:
-
a half-bridge circuit configured to receive a bipolar AC signal without rectification, the half-bridge circuit comprising a first bidirectional switch coupled between a first supply terminal and an output of the half-bridge circuit and a second bidirectional switch coupled between the output and a second supply terminal, each of the first bidirectional switch and the second bidirectional switch being configured to accommodate positive and negative voltages across the bidirectional switch; and a resonant tank coupled between the output of the half-bridge circuit and a primary winding of a transformer, wherein the first bidirectional switch and the second bidirectional switch turn on and off at a constant frequency and a constant duty cycle. - View Dependent Claims (30, 31, 32, 38, 39)
-
-
33. (canceled)
Specification