Yaohui Electrical Technology Co., Ltd., Dongguan City, located in the world manufacturing city - Dongguan, is a professional turbine electrical control product development, production and sales of high-tech enterprises. Related products now have a generator governor, pressure plate, controller, synchronizer, load distributor, and cabinets, chargers, actuators, sensors, meters, etc. Provide quality generator control products for many manufacturers and turbine generator sets user, OEM and ODM services. "Quality professional integrity of the future" for the purpose, customer-centric SX440 generator manufacturers to the customers of the business philosophy to serve customers. When the electric car brush controller unit power is not normal 1) electric vehicle controller internal power supply is generally a three-terminal regulator IC, different types of controllers. General use 7805,7806,7812,7815 three-terminal regulator IC Dongguan generator SX440, their output voltages are 5V, 6V, 12V, 15V. 2) Set the multimeter DC voltage + 20V (DC) position, the multimeter black pen with a red pen, respectively, against the turn to the black and red lines, observe the multimeter reading is consistent with the nominal voltage, the voltage difference between the upper and lower their should not exceed 0.2V. 3) Otherwise, it means the controller's internal power supply fails, the general brush controller can replace the three-terminal voltage regulator integrated circuit troubleshooting. Dongguan Zhongxin electromechanical generator SX440 _ (certified) _SX440 provided by the Dongguan City, South City Zhongxin Electrical and Mechanical Services Department. Dongguan City, South City Zhongxin Electrical and Mechanical Services Department (zhongxin888.net.cn) is Dongguan, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Electromechanical faithful leadership in the staff warmly welcome all inquiries negotiations to create a better future for electromechanical faithful.