This article presents the design and create electronic direct lotkrasae can configure the final pressure (End Voltage) to work using the main system control closed (closed-loop circuit) to work with the average flow control, there is a constant value by using a microcontroller as.The micro controller, task command from the User Interfact then made a comparison, which will be a value error (Error) Come out and then used the PI control Control to adjust reduce error and to send a signal to drive the transistor to make adjustments, actual current from the battery as close to the current command. Sectors of the voltage detector when the battery Discharge pressure will decrease until the End value Voltage micro controller compares the signal if the conditions are met, it is stopped to prevent the battery is damaged. This test will test the battery brand NEW 12V 9AH POWER NS12-9 version 20HR.
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