A PWM modulation circuit controls low-side transistors of three phases (u, v, and w) all to be into an ON state, when a brake current flows, controls, in a period in which a brake current flows in one phase, a transistor for sensing (u, v, and w) of this one phase to be into an ON state, and controls, in a period of two phases, the transistor for sensing (u, v, and w) of three phases to be into an OFF state. When the brake current is to flow, sense-phase control circuits of three phases controls a transistor for sensing (u, v, and w), in a phase in which the brake current is in a sink direction, to be into an ON state, and controls the transistor for sensing (u, v, and w) in a phase in which it is in an opposite direction, to be into an OFF state.

A PWM modulation circuit controls low-side transistors of three phases (u, v, and w) all to be into an ON state, when a brake current flows, controls, in a period in which a brake current flows in one phase, a transistor for sensing (u, v, and w) of this one phase to be into an ON state, and controls, in a period of two phases, the transistor for sensing (u, v, and w) of three phases to be into an OFF state. When the brake current is to flow, sense-phase control circuits of three phases controls a transistor for sensing (u, v, and w), in a phase in which the brake current is in a sink direction, to be into an ON state, and controls the transistor for sensing (u, v, and w) in a phase in which it is in an opposite direction, to be into an OFF state.

The present invention relates to a control device and method for adjusting speed and forward/reverse rotation of a wire-controlled brushless motor power supply during positive/negative half-cycle phase loss, comprising an AC power supply, a wire-controlled circuit control device, a brushless motor control device, and a ceiling fan brushless motor, wherein the AC power supply is electrically connected to the wire-controlled circuit control device which is electrically connected to the brushless motor control device and which is electrically connected to the ceiling fan brushless motor, to control the AC power supply positive/negative half-cycle on/off and to generate a positive/negative half-cycle signal for multi-step speed and forward/reverse rotation control, detection, determination, and storage. The overall design is simple and convenient without the need for complicated and cumbersome wiring or safety concerns, to achieve the effect of structural stability and the use of safety and convenience.

The present invention relates to a control device and method for adjusting speed and forward/reverse rotation of a wire-controlled brushless motor power supply during positive/negative half-cycle phase loss, comprising an AC power supply, a wire-controlled circuit control device, a brushless motor control device, and a ceiling fan brushless motor, wherein the AC power supply is electrically connected to the wire-controlled circuit control device which is electrically connected to the brushless motor control device and which is electrically connected to the ceiling fan brushless motor, to control the AC power supply positive/negative half-cycle on/off and to generate a positive/negative half-cycle signal for multi-step speed and forward/reverse rotation control, detection, determination, and storage. The overall design is simple and convenient without the need for complicated and cumbersome wiring or safety concerns, to achieve the effect of structural stability and the use of safety and convenience.

A power system is provided comprising an electric universal motor including an armature rotatable coupled to an armature shaft and a commutator disposed on an armature shaft, a pair of brushes engaging the commutator, and a field having at least two field windings electrically coupled in series with the pair of brushes. The power system includes a power line having two terminals arranged to provide alternating-current (AC) power from a power supply, and a power switch provided in series with the field windings on a power line to provide AC power from the terminals to the motor when the power switch is closed. An electronic brake module is provided in the power system and configured to generate a braking force to stop the motor when the switch is opened, the electronic brake module comprising: a solid-state semiconductor switch arranged across the motor armature and the pair of brushes, a first diode arranged between a first node of the power line and the semiconductor switch, and a second diode arranged between a second node of the power line and the semiconductor switch, wherein the first node is arranged between one of the terminals and the power switch, and the second node is arranged between the power switch and the armature. A controller is provided in the power system and configured to initiate a braking mode of operation to close the semiconductor switch when the power switch is opened.

An electric apparatus includes: an electricity storage device; a rotary electric machine including an -phase first coil and an -phase second coil; and an electric power control unit that controls electric power transfer of each of the electricity storage device and the rotary electric machine. The electric power control unit includes: a first full-bridge circuit connected to both ends of the -phase first coil; and a second full-bridge circuit connected to both ends of the -phase second coil. When electric power is transmitted via the -phase first coil and the -phase second coil between the first full-bridge circuit and the second full-bridge circuit, the electric power control unit controls a phase difference between the first full-bridge circuit and the second full-bridge circuit in a range that includes 90 to 180.

An electric apparatus includes: an electricity storage device; a rotary electric machine including an -phase first coil and an -phase second coil; and an electric power control unit that controls electric power transfer of each of the electricity storage device and the rotary electric machine. The electric power control unit includes: a first full-bridge circuit connected to both ends of the -phase first coil; and a second full-bridge circuit connected to both ends of the -phase second coil. When electric power is transmitted via the -phase first coil and the -phase second coil between the first full-bridge circuit and the second full-bridge circuit, the electric power control unit controls a phase difference between the first full-bridge circuit and the second full-bridge circuit in a range that includes 90 to 180.

An electric apparatus includes: a rotary electric machine; an electric power control unit; and an angle sensor that acquires a phase of a rotor of the rotary electric machine. The electric power control unit sets, based on the phase of the rotor acquired by the angle sensor, a stop phase of the rotor at the time of stopping of the rotary electric machine to an intermediate phase of a backlash provided on a power transmission mechanism connected to the rotor.

An electric apparatus includes: a rotary electric machine; an electric power control unit; and an angle sensor that acquires a phase of a rotor of the rotary electric machine. The electric power control unit sets, based on the phase of the rotor acquired by the angle sensor, a stop phase of the rotor at the time of stopping of the rotary electric machine to an intermediate phase of a backlash provided on a power transmission mechanism connected to the rotor.

The present invention relates to a control device and method for adjusting speed and forward/reverse rotation of a wire-controlled brushless motor power supply during positive/negative half-cycle phase loss, comprising an AC power supply, a wire-controlled circuit control device, a brushless motor control device, and a ceiling fan brushless motor, wherein the AC power supply is electrically connected to the wire-controlled circuit control device which is electrically connected to the brushless motor control device and which is electrically connected to the ceiling fan brushless motor, to control the AC power supply positive/negative half-cycle on/off and to generate a positive/negative half-cycle signal for multi-step speed and forward/reverse rotation control, detection, determination, and storage. The overall design is simple and convenient without the need for complicated and cumbersome wiring or safety concerns, to achieve the effect of structural stability and the use of safety and convenience.