Electronic voltage detection and protection device

Claim 1

AN ELETRONIC VOLTAGE DETECTION CONTROL DEVICE FOR CONTROLLING THE OUTPUT CIRCUIT OF A POWER SUPPLY IN RESPONSE TO THE VOLTAGE OUTPUT OF SAID POWER SUPPLY TO OPEN THE POWER SUPPLY OUTPUT CIRCUIT WHEN THE VOLTAGE LEVEL DECREASES BELOW A LOWER PREDETERMINED VALUE AND TO OEPN SAID CIRCUIT IF THE STEADY STATE VOLTAGE LEVEL INCREASES ABOVE A FIRST UPPER PREDETERMINED VALUE OR WHEN ANY TRANSIENT VOLTAGE INCREASES ABOVE A SECOND UPPER PREDETERMINED VALUE, SAID DEVICE COMPRISING, MEANS FOR STORING A VOLTAGE REPRESENTING THE PEAK OUTPUT VALUE OF SAID POWER SUPPLY, FIRST VOLTAGE SENSING MEANS OPERABLY CONNECTED TO SAID STORAGE MEANS FOR PROVIDING AN OUTPUT WHEN THE STEADY STATE PEAK VALUE OF THE THE VOLTAGE OF SAID POWER SUPPLY EXCEEDS A FIRST UPPER PREDETERMINED VOLTAGE LEVEL AND WHEN THE VALUE OF ANY TRANSIENT VOLTAGE ON SAID POWER SUPPLY EXCEEDS A SECOND PREDETERMINED VOLTAGE LEVEL, TIME DELAY MEANS INCLUDED IN SAID VOLTAGE SENSING MEANS FOR PREVENTING THE IMMEDIATE OPERATION OF SAID VOLTAGE SENSING MEANS UPON THE OCCURRENCE OF TRANSIENT VOLTAGES EXCEEDING SAID FIRST PREDETERMINED LEVEL BUT NOT EXCEEDING SAID SECOND PREDETERMINED LEVEL, MEANS FOR PROVIDING A VOLTAGE REPRESENTING THE AVERAGE OUTPUT VALUE OF SAID POWER SUPPLY, SECOND VOLTAGE SENSING MEANS OPERABLY CONNECTED TO SAID AVERAGING MEANS FOR PROVIDING AN OUTPUT WHEN THE VALUE OF THE VOLTAGE ON SAID AVERAGING MEANS FALLS BELOW SAID LOWER PREDETERMINED VALUE, AND CONTROL CIRCUIT MEANS IN THE OUTPUT LINE OF SAID POWER SUPPLY ACTUATED BY THE OUTPUT OF SAID FIRST VOLTAGE SENSING MEANS TO OPEN THE OUTPUT LINE OF SAID POWER SUPPLY WHEN THE STEADY STATE VALUE OF THE VOLTAGE OF SAID POWER SUPPLY EXCEEDS SAID FIRST UPPER PREDETERMINED LEVEL OR WHEN ANY TRANSIENT VOLTAGES OF SAID POWER SUPPLY EXCEEDS SAID SECONE PREDETERMINED LEVEL, SAID CONTROL MEANS BEING FURTHER ACTUATED BY THE OUTPUT OF SAID SECOND VOLTAGE SENSING MEANS TO OPEN SAID OUTPUT LINE OF SAID POWER SUPPLY WHEN THE VALUE OF THE VOLTAGE OF SAID POWER SUPPLY FALLS BELOW SAID LOWER PREDETERMINED VALUE.