Abstract: An array controlling system includes a database, a controlling center and an array device. The controlling center reads a plurality of data of the database. The array device includes a processing unit, a main bus and an array unit. The processing unit receives a command of the controlling center and converts the command into a communication data. The main bus is configured to transmit the communication data to the array unit. A plurality of array modules of the array unit are connected in series with each other through a serial bus, and sequentially receive the communication data. The processing unit controls each of the array modules according to the communication data. A plurality of sensing data of the array modules are collected to the processing unit. The processing unit returns the sensing data to the database or the controlling center to update the database.

Abstract: AC motor driving system and driving method thereof are provided. The driving system and method are capable of increasing power factor, adjusting waveform of the DC ripple voltage for increasing driving efficiency. The driving system is basically constructed by connecting three circuits. The first circuit is a three-phase full wave rectifying circuit and is used to transfer commercial electricity to a first DC voltage. Then, the second circuit is used to transfer the first DC voltage to a second DC voltage that ripples voltage thereof having a semi-sinusoidal waveform. The third circuit is an AC driving circuit, and receives the second AC voltage for driving the AC motor. Thereby, the driving efficiency can be increased. The capacitance used in the present disclosure has low capacitance value, thus the power factor can be increased, and usage time of the AC motor driving apparatus can also be increased.

Abstract: An angle detecting module for a motor rotor is provided. The angle detecting module includes a permanent-magnet synchronous motor, three linear hall components and a processing device. The permanent-magnet synchronous motor includes a stator and a rotor. The three linear hall components are disposed on the stator; and the linear hall components are spaced by electrical 120 degrees. Each of the linear hall components outputs an analog signal after measuring a magnetic field position of the rotor, and each of the analog signals has magnetically saturated third harmonic component. The processing device is electrically connected to the linear hall components, and the processing device optimizes each of the analog signals and generates an average rotor angle.

Abstract: An angle detecting module for a motor rotor is provided. The angle detecting module includes a permanent-magnet synchronous motor, three linear hail components and a processing device. The permanent-magnet synchronous motor includes a stator and a rotor. The three linear hall components are disposed on the stator; and the linear hall components are spaced by electrical 120 degrees. Each of the linear hall components outputs an analog signal after measuring a magnetic field, position of the rotor, and each of the analog signals has magnetically saturated third harmonic component. The processing device is electrically connected to the linear hall components, and the processing device optimizes each of the analog signals and generates an average rotor angle.

Abstract: A fitness equipment energy regenerating and saving system is provided. The system includes a bidirectional power converter, a bidirectional power drive, a generator, and an energy managing circuit. The energy managing circuit activates the bidirectional power converter so as to enable the bidirectional power drive to feedback the power generated by the generator to an electrical grid when the generator is operated in a generator mode. The energy managing circuit sets the bidirectional power converter to a current-regulating mode so as to enable the bidirectional power drive to obtain the power required for driving from the electrical grid when the generator is operated in a motor mode.

Abstract: A fitness equipment energy regenerating and saving system is provided. The system includes a bidirectional power converter, a bidirectional power drive, a generator, and an energy managing circuit. The energy managing circuit activates the bidirectional power converter so as to enable the bidirectional power drive to feedback the power generated by the generator to an electrical grid when the generator is operated in a generator mode. The energy managing circuit sets the bidirectional power converter to a current-regulating mode so as to enable the bidirectional power drive to obtain the power required for driving from the electrical grid when the generator is operated in a motor mode.

Abstract: A power factor correction converter capable of fast adjusting load functions to (a) convert a single-phase AC voltage into a DC voltage output; (b) control an input current and an input voltage for a correspondent electrical phase, namely the power factor that is 1; and (c) control a DC output voltage level. The converter is provided with a booster-based AC-DC converter as a core, in which the circuit includes a rectification circuit, a switching circuit consisting of a DC inductor and a power crystal, an energy-saving capacitor, a protection circuit, a microprocessor, and auxiliary circuits around. The power factor control, output voltage, and current control and filter modules function in the form of software program instead of conventional hardware circuits. Further, a powerful controller uses an output current feedback to enhance the DC output voltage to suppress the disturbance of load.