Patent ID: 9579652
Date: 2017-02-28
CPC Classifications: B01L,F03G,F04B,F16K

Claim:
1. A driving device comprising: a pump driver circuit including: a first shape memory alloy wire, a wiring part arranged in electrically parallel to the first shape memory alloy wire, and a first selector switch that switches between a state where electric power is supplied only to the first shape memory alloy wire and a state where the electric power is supplied to the wiring part, a micropump that performs pump operation with extension and contraction of the first shape memory alloy wire being formed; a valve driver circuit including: a plurality of second shape memory alloy wires, and a second selector switch that brings into a state where the electric power is supplied to one of the plurality of second shape memory alloy wires, a plurality of microvalves that perform valve operation with extension and contraction of the respective plurality of second shape memory alloy wires being formed; a power supply for supplying the electric power; a switch that is connected to the pump driver circuit and the valve driver circuit in series, and turns on and off a current flowing through the pump driver circuit and the valve driver circuit from the power supply; a valve controller that controls a state of the second selector switch and frequency of on and off of the switch part; and a pump controller that controls a period when the first selector switch enters the state where electric power is supplied only to the first shape memory alloy wire, when the switch part is in an on state.