Charge and discharge system for the battery test by separate posting for the heating part

The present invention relates to that, in particular, the charge and discharge system, which through a separate arrangement of the heat generating portion to be used as a power source to minimize the malfunction rate to a by regenerating the discharge electric power driving circuit of a charge-discharge system, a battery to the rectified electrical energy a power module (310) having a PWM control unit 314 for controlling the driving of the variable pressure unit 311, a transformer unit 311 which transforms the voltage to the charging voltage of 400; A voltage sensor to determine the voltage and current between the PWM output unit 321, a battery 400, and a PWM output unit 321 to determine the state of charge of the battery 400 proceeds to the charge and discharge of the battery 400 (323 ) and the current sensor 325 and voltage sensor 323 and current sensor (voltage comparator 324 and the current comparator 326 for comparing the sensed value and the set reference value received from 325), the voltage comparator 324 and the having a PWM control unit 322 to receive the result of the comparison of the current comparator 326 to control the PWM output unit 321, a channel module 320; The voltage comparator 324 and the voltage at which each set the reference value of the current comparator 326, the control unit 342 and current control unit 343 and, for controlling the operation of the voltage control unit 342 and current control unit (343) having a CPU (341), the main module 340; Main which it receives a signal input by the operator to manipulate the operation of the CPU (341), the control module 510; In the charge and discharge system comprising a discharge module (319) to discharge the electric energy of the battery 400, the channel module 320 doedoe fixed mount electrically connected to the substrate (303), PWM output unit 321 includes a substrate disposed 303 and side by side spaced apart and mounted on a support substrate 305 is fixed to the electrical / mechanical and substrate 303 as a medium for the mounting projection (306); It further comprises a room tropical 307 which has one side bent portion is formed and side-by-side spaced-apart arrangement with the PWM output unit supporting substrate 305 so as to cover the 321 to widen the contact area with air.