SYSTEM AND METHOD FOR ACHIEVING FAST SWITCHING OF ANALOG VOLTAGES ON A LARGE CAPACITIVE LOAD

摘要

Actuator (100) and method is provided for driving a capacitive load 120 to achieve an improved response time without increasing the power consumption of the actuator. The actuator 100 has a load buffer with an input unit 110, an output voltage output unit 115 in the (V _OUT) can be coupled to the load (120) for receiving an input voltage (V _IN) . V _OUT is driven in response to changes in V _IN between a first voltage level (V ₁₎ and the second voltage level (V _2). The actuator 100 is provided with a pre-circuit with a controller (145) for operating the switch 140 and the switch for coupling to a capacitor 130, a reserve buffer (135), the capacitor to the capacitive load 120 ring . Reserve buffer 135, the input voltage input unit 150, the output voltage (V _{RES_OUT)} in order to charge the capacitor the capacitor and an output portion 155 for coupling (130) for receiving (V _{RES_IN)} do. V _OUT controller is controller is configured to operate the switch, capacitor 140 is coupled to the 130 to capacitive load 120 is driven between V ₁ and V _2.