Patent ID: 7030516

Claim:
A control apparatus for alternately switching a control state of an object between a first control state and a second control state in response to an operation on a momentary switch, comprising: a momentary switch; a latch circuit that operates based on electric power supplied from a power supply line to switch a latch output signal from a first output state to a second output state, said latch circuit holding said second output state in response to said operation performed on said momentary switch; a reset circuit that sends a signal to said latch circuit in response to an input of a latch reset signal so that said latch circuit switches said latch output signal from said second output state to said first output state; a microcomputer that operates based on said electric power supplied from said power supply line so that if said latch output signal has said first output state when said momentary switch is operated, said microcomputer switches said control state of said object from said first control state to said second control state, and if said latch output signal has said second output state when said momentary switch is operated, said microcomputer switches said control state of said object from said second control state to said first control state, and said microcomputer outputs said latch reset signal to said reset circuit; and a capacitor electrically connected to said power supply line, said capacitor supplying an electric power to said latch circuit to hold an output state of said latch output signal when a supply of said electric power to said latch circuit from said power supply line is cut off; wherein said momentary switch switches a state of connection between a predetermined switch contact portion and a around from a cut-off state to a conductive state only when an operational force is applied to said momentary switch and wherein said latch circuit has a resistor with connection portion at one side electrically connected to said power supply line, and a connection portion at its other side electrically connected to said switch contact portion, and an electric potential of said connection portion at said other side is used as said latch output signal.