Detecting device for detecting battery outlet voltage
Patent 4024415 Issued on May 17, 1977. Estimated Expiration Date: 
May 17, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 17, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3038110 3604952 3702943 3862441 3877001 3928846 InventorApplicationNo. 05/642339 filed on 12/19/1975US Classes:327/85, Inverting input or output320/148, With peak detection of current or voltage (e.g., delta-V or delta-I utilized, etc.)327/384, Switch noise signal327/437, Complementary metal-oxide semiconductor (CMOS)327/78, Reference level crossover detecting327/81, With transistor340/636.15, By voltage368/66, With power monitor968/505With means for indicating the condition of the power supply (in general G01R 31/00B) [G04C 10/04]ExaminersPrimary: Heyman, John S.Attorney, Agent or FirmForeign Application Priority Data1974-12-20 JAAbstractA detecting device for detecting battery output voltage comprises a voltage detector having at least a pair of MOS transistors connected in series such that at least one of said MOS transistors shifts to its conductive state when the battery output voltage falls below a predetermined value to provide one type logic level signal and remains non-conductive when the battery output voltage is above the predetermined value to provide the other type logic signal.A switching circuit comprised of a complementary MOS inverter receives the output logic signal derived from the voltage detector and switches states in response to the two logic signals to accordingly control the energization of a display element in dependence upon the battery output voltage. | |
