Controller, drive assembly and half-bridge assembly for providing a voltage
First Claim
1. A controller for controlling a motor, wherein the motor includes a predetermined number of phase windings, the controller comprising:
- a drive assembly in electrical communication with a power supply and the motor, wherein the drive assembly is configured to receive a voltage output of the power supply and provide a pulse-width-modulated input voltage to the motor, wherein the drive assembly comprises a plurality of half-bridge assemblies at least one of which is configured to electrically connect to each phase winding of the motor, at least one half-bridge assembly comprising;
a first arrangement;
a first diode electrically connected in parallel with the first arrangement;
a second arrangement electrically connected in series with the first arrangement; and
a second diode electrically connected in parallel with the second arrangement,wherein each arrangement includes a base switching element electrically connected in series with a supplemental switching element, and wherein the at least one half-bridge assembly is configured to electrically connect to a respective phase winding of the motor at a node electrically connected in series with and between the first and second diodes; and
a processing element in electrical communication with the drive assembly and the motor, wherein the processing element is configured to control operation of the drive assembly.
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Accused Products
Abstract
A half-bridge assembly is provided, such as for use in a drive assembly of a controller for controlling a motor. The half-bridge assembly includes a first arrangement, and a first diode electrically connected in parallel with the first arrangement. The half-bridge assembly also includes a second arrangement electrically connected in series with the first arrangement, as well as a second diode electrically connected in parallel with the second arrangement. Each arrangement includes a base switching element, such as a metal-oxide semiconductor field—effect transistor (MOSFET), electrically connected in series with a supplemental switching element (e.g., MOSFET).
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Citations
20 Claims
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1. A controller for controlling a motor, wherein the motor includes a predetermined number of phase windings, the controller comprising:
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a drive assembly in electrical communication with a power supply and the motor, wherein the drive assembly is configured to receive a voltage output of the power supply and provide a pulse-width-modulated input voltage to the motor, wherein the drive assembly comprises a plurality of half-bridge assemblies at least one of which is configured to electrically connect to each phase winding of the motor, at least one half-bridge assembly comprising; a first arrangement; a first diode electrically connected in parallel with the first arrangement; a second arrangement electrically connected in series with the first arrangement; and a second diode electrically connected in parallel with the second arrangement, wherein each arrangement includes a base switching element electrically connected in series with a supplemental switching element, and wherein the at least one half-bridge assembly is configured to electrically connect to a respective phase winding of the motor at a node electrically connected in series with and between the first and second diodes; and a processing element in electrical communication with the drive assembly and the motor, wherein the processing element is configured to control operation of the drive assembly. - View Dependent Claims (2, 3, 4, 5, 18)
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6. A drive assembly for providing a voltage, wherein the drive assembly comprises a plurality of half-bridge assemblies, at least one half-bridge assembly comprising:
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a pair of base switching elements; a pair of supplemental switching elements electrically connected in alternating series with the pair of base switching elements; and a pair of diodes, each diode electrically connected in parallel with a respective base switching element in series with a supplemental switching element, wherein the drive assembly is configured to electrically connect to a load at a node electrically connected in series with and between the pair of diodes. - View Dependent Claims (7, 8, 9, 10, 11, 12, 19)
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13. A half-bridge assembly comprising:
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a first arrangement; a first diode electrically connected in parallel with the first arrangement; a second arrangement electrically connected in series with the first arrangement; and a second diode electrically connected in parallel with the second arrangement, wherein each arrangement includes a base switching element electrically connected in series with a supplemental switching element, and wherein the half-bridge assembly is configured to electrically connect to a load at a node electrically connected in series with and between the first and second diodes. - View Dependent Claims (14, 15, 16, 17, 20)
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Specification