Author_Institution :
Dept. of Inf. Eng., Nanchang Univ., Nanchang, China
Abstract :
This article highlights the Nanchang University, Chang-Da on the 1st series and parallel using a group of 3.3V Li-ion battery boxes made of 288V, to a three-phase brushless DC motor to drive, and by TMS320LF2407A DSP to control the PWM output, and then adopted by the IGBT device composed of three-phase full-bridge circuit to drive the brushless DC motor speed, thus ensuring the motor speed control requirements, and also designed a by TL431, PC817, HCPL316J, UC3844, LT1117 chips such as the composition of the DC / DC conversion.Through this circuit, you can accurately get the output of ±12V, ±15V, ±9V and 3.3V voltage, so that the these voltages can give electric cars the various electronic devices, as well as DSP power to maintain the normal operation of electric vehicles by Chang Da on the 1st successful development of electric vehicles, indicating the reliability of the design.
Keywords :
DC-DC power convertors; PWM power convertors; angular velocity control; battery powered vehicles; brushless DC motors; digital signal processing chips; insulated gate bipolar transistors; secondary cells; Chang-Da; DC/DC conversion; DSP-controlled three-phase brushless DC motor; IGBT device; Li-ion battery; Nanchang University; PWM output control; electric cars; electric vehicle; motor speed control; power system; three-phase full-bridge circuit; voltage 288 V; voltage 3.3 V; Batteries; Brushless DC motors; Circuits; DC motors; Digital signal processing chips; Electric vehicles; Insulated gate bipolar transistors; Power systems; Pulse width modulation; Voltage control; Chang-Da on the 1st series and parallel; TMS320LF2407A DSP; the brushless DC motor; three-phase brushless DC motor;
