Electrostatic windshield wiper and headlight control circuit

An electrostatic control circuit for activating an automobile lighting system in response to activation of a windshield wiper system, said control circuit comprising

• a first insulated-gate field effect transistor having a gate for connection to a windshield wiper circuit, a drain for connection to a power supply and a source, said gate having no physical contact with said drain and said source;
• a second insulated-gate field effect transistor having a gate, a drain for connecting to the power supply, and a source for connection to ground;
• a relay having a coil connected to and between said drain of said second transistor and the power supply, at least one stationary contact for connection to a lighting circuit and at least one normally open movable contact for connection to the power supply;
• and
• a sub-circuit network for maintaining a constant threshold voltage at said gate of said second transistor, said network connected to said supply of said first transistor, said gate of said second transistor and ground.

In combination,

• a first electrical circuit;
• a second electrical circuit isolated from said first electrical circuit;
• a power supply common to each said electrical circuit;
• and
• an electrostatic control circuit for activating said first electrical circuit in response to connection of said second electrical circuit to said power supply, said control circuit including a relay having at least one stationary contact connected to said first electrical circuit, at least one normally open movable contact connected to said power supply and a coil connected to said power supply for moving said movable contact onto said stationary contact in response to a flow of current through said coil;
• an insulated gate field effect transistor having a gate connected to said second electrical circuit, a drain connected to said power supply, and a source, said gate having no physical contact with said drain and said source;
• and a relay driver connected to and between said source of said transistor and said coil of said relay to energize said coil in response to activating of said second electrical circuit.

A control circuit for activating an automobile lighting system in response to activation of a windshield wiper system, said control circuit comprising

• an electron valve having a gate for connection to a windshield wiper circuit, a drain for connection to a power supply and a source for connection to ground;
• a rectifier having a gate connected to said source of said electron valve and to said ground, a cathode for connection to ground and an anode;
• a relay having a coil connected to and between said anode of said rectifier and the power supply, at least one stationary contact for connection to a lighting circuit and at least one normally open movable contact for connection to the power supply whereby upon activation of the windshield wiper circuit and a flow of current from the power supply through said coil of said relay, said movable contact closes on said stationary contact to effect a flow of current to the lighting circuit from the power supply;
• and
• a normally closed reset switch connected to and between said coil of said relay and the power supply for selectively interrupting a flow of current to the lighting circuit.