Abstract:
An integrated power module is provided, which may include a gate driver circuit, a plurality of first metal plates, a plurality of chips, a plurality of second metal plates, and an annular frame. The first metal plates may be parallel to each other/one another, and electrically coupled to the gate driver circuit; at least one of the first metal plates may include a plurality of chip slots. The chips may be disposed at the chip slots; each of the chips may be electrically coupled to one of the adjacent first metal plates. The second metal plates may be parallel to each other/one another, and electrically coupled to the gate driver circuit; each of the second metal plates may be disposed between any two adjacent first metal plates. The first metal plates, the second metal plates, the gate driver circuit, and the chips may be disposed inside the annular frame.
Abstract:
A distributed single-stage on-board charging device comprises a first transformer having a first primary winding and a first secondary winding; a first capacitor connected to the first primary winding; a first inductor connected to the first capacitor, wherein the first capacitor is located between the first inductor and the first transformer; a first transistor connected to the first capacitor and the first inductor; a first diode connected to the first secondary winding; a second transformer having a second primary winding and a second secondary winding, wherein the first transformer and the second transformer are connected in parallel; a second capacitor connected to the second primary winding; a second inductor connected to the second capacitor, wherein the second capacitor is located between the second inductor and the second transformer; and a second transistor connected to the second capacitor and the second inductor.
Abstract:
A crankshaft rotating angle controlling method and a crankshaft rotating angle controlling system are provided. A shut-off signal is obtained, and an engine speed is judged. If the engine speed is lower than a specific value, a generator is set in a driving mode at an ending point of a missing tooth signal in a gear pulse signal, such that the generator in the driving mode drives a crankshaft to exceed a top-dead-center of a cylinder. When the crankshaft arrives at a bottom-dead-center of the cylinder, the generator is set to be in a holding mode of an error phase of a three-phase current. Through the generator in the driving mode, the given error phase of the three-phase current stops the generator immediately and the crankshaft is fixed within an angle range of a default stop position.
Abstract:
An output control apparatus of a motor includes a controller formed by having a power device to bridge a motor and a power supply. The controller incorporating the power device provides voltage control modulation during different motor speeds so as to fix the recharging voltage at the DC bus in a specific range without involvement of any voltage converter. It is unnecessary to use additional complex circuits or other DC/DC converters to reduce the voltage recharged from the motor running at a high speed. In addition, space for the apparatus is reduced, and the specification and function of the original controller can be maintained without trading off work in redesigning the motor system.
Abstract:
A modulation method is provided. The modulation method includes the steps of receiving multiple sinusoidal signals, obtaining the maximum value of the sinusoidal signals, obtaining the median value of the sinusoidal signals, and obtaining the minimum value of the sinusoidal signals within a period to generate a difference between the maximum value and the minimum value, generating a difference according to an upper limit and a lower limit of a predetermined comparison value, and comparing the two differences to generate an optimized modulation signal.
Abstract:
A motor control method for coupled an electronic vehicle is provided. The motor controller controls a motor and is powered by a battery. The motor control method includes: when a main relay of the motor controller suddenly breaks contact, in a first phase, feeding back a surge current into the battery to suppress the surge current by a diode and a first current limit resistor of a first protecting circuit of the motor controller; and, in a second phase, conducting a discharge switch of a second protecting circuit of the motor controller by a control unit of the motor controller, and releasing the surge current to a reference voltage range by the discharge switch and a second current limit resistor of the second protecting circuit.
Abstract:
A DC-DC power conversion apparatus and a DC-DC power conversion method are provided. The DC-DC power conversion apparatus includes a switching circuit, a main transformer circuit, a main rectifier circuit, an auxiliary transformer circuit and an auxiliary rectifier circuit. The switching circuit provides an input power to a primary winding of the main transformer circuit or a primary winding of the auxiliary transformer circuit by time-division. An AC input terminal of the main rectifier circuit is coupled to a secondary winding of the main transformer circuit. An AC input terminal of the auxiliary rectifier circuit is coupled to a secondary winding of the auxiliary transformer circuit. A power output terminal of the auxiliary rectifier circuit is coupled to a reference voltage terminal of the main rectifier circuit for lifting a voltage of the power output terminal of the main rectifier circuit.
Abstract:
A distributed single-stage on-board charging device comprises a first transformer having a first primary winding and a first secondary winding; a first capacitor connected to the first primary winding; a first inductor connected to the first capacitor, wherein the first capacitor is located between the first inductor and the first transformer; a first transistor connected to the first capacitor and the first inductor; a first diode connected to the first secondary winding; a second transformer having a second primary winding and a second secondary winding, wherein the first transformer and the second transformer are connected in parallel; a second capacitor connected to the second primary winding; a second inductor connected to the second capacitor, wherein the second capacitor is located between the second inductor and the second transformer; and a second transistor connected to the second capacitor and the second inductor.
Abstract:
A DC-DC power conversion apparatus and a DC-DC power conversion method are provided. The DC-DC power conversion apparatus includes a switching circuit, a main transformer circuit, a main rectifier circuit, an auxiliary transformer circuit and an auxiliary rectifier circuit. The switching circuit provides an input power to a primary winding of the main transformer circuit or a primary winding of the auxiliary transformer circuit by time-division. An AC input terminal of the main rectifier circuit is coupled to a secondary winding of the main transformer circuit. An AC input terminal of the auxiliary rectifier circuit is coupled to a secondary winding of the auxiliary transformer circuit. A power output terminal of the auxiliary rectifier circuit is coupled to a reference voltage terminal of the main rectifier circuit for lifting a voltage of the power output terminal of the main rectifier circuit.