We Claim:
1. A circuit (115) for establishing a power supply in a three-phase rectifier circuit in a
battery-less state of a vehicle, the circuit (115) comprising:
5 a first end of a plurality of switching elements (301a), (301b), (301c) connected
to each phase of a generator (101);
a series switch (303) configured to establish an electrical connection with a
gate driver (305); and
a switching circuit (307) configured to control the series switch (303).
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2. The circuit (115) as claimed in claim 1, wherein the circuit (115) is configured to
establish a power supply in a three-phase rectifier circuit using at least a seven-switch
topology.
15 3. The circuit (115) as claimed in claim 1, wherein the series switch (303) is a P-channel
MOSFET, an N-channel MOSFET, or a combination thereof.
4. The circuit (115) as claimed in claim 1, further comprising a microcontroller (309)
connected to the switching circuit (307).
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5. The circuit (115) as claimed in claim 1, wherein the switching elements (301a), (301b),
(301c) are diodes, MOSFETs, or a combination thereof.
6. The circuit (115) as claimed in claim 1, further comprising:
25 a capacitor (311) connected between the switching elements (301a, 301b, 301c)
and the switching circuit (307), wherein the capacitor (311) generates a rectified voltage;
a microcontroller (309) coupled to a first transistor (315) via a first resistor
(313a);
the first transistor (315) connected to a second resistor (313b) and a second
30 transistor (317);
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the second resistor (313b) coupled to a gate pin (G) of the series switch (303)
via a fourth resistor (313d) and to a source pin (S) of the series switch (303); and
a third resistor (313c) connected between the source pin (S) of the series switch
(303) and the gate pin (G) of the series switch (303), wherein a drain pin (D) of the series
5 switch (303) is connected to the gate driver (305).
7. The circuit (115) as claimed in claim 6, wherein the microcontroller