Driving circuit applied to protection switch of battery module

A driving circuit applied to a protection switch of a battery module, wherein the battery module is connected to the protection switch, the battery module is charged or discharged when the protection switch is turned on, the driving circuit including:

• a reverse switch;
• a non-reverse switch, wherein the reverse switch and the non-reverse switch are turned on or off by a controlling of a PWM signal;
• a first capacitor, provided with one end connected to a first node, and provided with another end connected to a second node, wherein the first capacitor, the reverse switch, and the non-reverse switch are connected together in the first node;
• a first diode, provided with a positive electrode connected to a battery total voltage, and provided with a negative electrode connected to the second node;
• a second diode, provided with a positive electrode connected to the second node, and provided with a negative electrode connected to a third node;
• a storing energy component, provided with one end connected to the third node, and provided with another end connected to the battery total voltage;
• and
• a driving switch, provided with a first end connected to the protection switch, provided with a second end connected to the third node, and provided with a control end connected to the battery total voltage, wherein the driving switch is a transistor switch;
• wherein when the PWM signal is at a high level state, the reverse switch will be turned off, the non-reverse switch will be turned on, the first capacitor is charged by the battery total voltage to form a storage voltage on the first capacitor;
• when the PWM signal is in a low level state, the reverse switch will be turned on, the non-reverse switch will be turned off, a reference voltage is connected to the first node via the reverse switch to form a superimposed voltage by a superimposition of the reference voltage and the storage voltage;
• when the superimposed voltage is higher than the battery total voltage, a boosted voltage higher than the battery total voltage will be formed on the storing energy component;
• when the storage voltage of the first capacitor is equal to the battery total voltage, a final boosted voltage superimposed by the battery total voltage and the reference voltage is formed on the storing energy component;
• afterwards, when the driving switch is turned on, the final boosted voltage will be used to drive the protection switch to be turned on via the driving switch.