[특허]Electronic control circuits, electronically commutated motor systems, switching regulator power supplies, and methods

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02P-005/17
출원번호	US-0167574 (1988-03-10)
발명자 / 주소	Archer William R. (Fort Wayne IN)
출원인 / 주소	General Electric Company (Fort Wayne IN 02)
인용정보	피인용 횟수 : 28 인용 특허 : 42

초록 ▼

Electronic control circuit for use with electrical load powering apparatus having a load connection, a high voltage supply connection and a common, and with an electronic switch to switch the high voltage supply connection to the load connection. The electronic switch has an input and is responsive

Electronic control circuit for use with electrical load powering apparatus having a load connection, a high voltage supply connection and a common, and with an electronic switch to switch the high voltage supply connection to the load connection. The electronic switch has an input and is responsive to a voltage difference between the input and the load connection. The load connection is subject to high voltage excursions relative to the common due to the switching. The electronic control circuit includes a transformer having a primary winding and a secondary winding for providing at least one pulse output from the secondary winding, the transformer having an inherent interwinding capacitance between the primary winding and the secondary winding. A circuit connected to the secondary winding couples the pulse output from the secondary winding between the input of the electronic means and the load connection when the pulse output is present. A high voltage excursion on the load connection charges the inherent interwinding capacitance to a high voltage level when the pulse output is present. The electronic control circuit further includes circuitry for bypassing the high voltage level on the inherent interwinding capacitance of the transformer to the load connection when the pulse output and each high voltage excursion cease. An electronically commutated motor system, a switching regulator power supply and methods of operation are also disclosed.

대표청구항 ▼

For use with electrical load powering apparatus having a load connection, a high voltage supply connection and a common, and with electronic means for switching the high voltage supply connection to the load connection, the electronic means having an input and being responsive to a voltage differenc

For use with electrical load powering apparatus having a load connection, a high voltage supply connection and a common, and with electronic means for switching the high voltage supply connection to the load connection, the electronic means having an input and being responsive to a voltage difference between the input and the load connection, the load connection being subject to high voltage excursions relative to the common due to the switching, an electronic control circuit comprising: a transformer having a primary winding and a secondary winding for providing at least one pulse output from said secondary winding, said transformer having an inherent interwinding capacitance between said primary winding and said secondary winding; means connected to said secondary winding for coupling the pulse output from said secondary winding between the input of the electronic means and the load connection when the pulse output is present, a high voltage excursion on the load connection charging the inherent interwinding capacitance to a high voltage level when the pulse output is present; and means for bypassing the high voltage level on the inherent interwinding capacitance of said transformer to the load connection when the pulse output and each high voltage excursion cease, including active control means having an input and first and second control leads and means for providing a resistive path substantially free of inductance between the input of said active control means and the input of the electronic means, said active control means thereby bypassing current from the input of the electronic means to the load connection through the first and second control leads and the high voltage level being prevented from actuating the electronic means when each high voltage excursion ceases. A switching regulator power supply for use with electrical load powering apparatus having a high voltage supply connection and a common, the switching regulator power supply comprising: a power transformer having a first winding and an output winding; a solid state power switching device having a high impedance input and control terminals connected between the high voltage supply connection and said first winding of said power transformer, said high impedance input having an inherent input capacitance, said first winding being subject to high voltage excursions relative to the common due to the switching; a signal transformer having a primary winding and a secondary winding for providing at least one pulse output from said secondary winding, said signal transformer having an inherent interwinding capacitance between said primary winding and said secondary winding; means connected to said secondary winding for coupling the pulse output from said secondary winding between said high impedance input of said solid state power switching device and said first winding of said power transformer when the pulse output is present, a high voltage excursion on said first winding charging said inherent interwinding capacitance to a high voltage level when the pulse output is present; and means for bypassing the high voltage level on the inherent interwinding capacitance of said signal transformer to said first winding of said power transformer when the pulse output and each high voltage excursion cease, including active control means having an input and first and second control leads and means for providing a resistive path substantially free of inductance between said input of said active control means and said high impedance input of said solid state power switching device, said active control means thereby bypassing current from said high impedance input of said solid state power switching device to said first winding through said first and second control leads and the high voltage level being prevented from actuating said solid state power switching device when each high voltage excursion ceases; means connected to said output winding of said power transformer for deriving an output voltage of the switching regulator power supply; means for detecting a difference between the output voltage and a predetermined value to which the output voltage is to be regulated; and means for generating a pulse width modulated series of pulses for energizing the primary winding of said signal transformer as a function of the difference so detected to reduce the difference detected. A control method for use in electrical load powering apparatus having a load connection, a high voltage supply connection and a common, and including electronic means for switching the high voltage supply connection to the load connection, the electronic means having an input and being responsive to a voltage difference between the input and the load connection, the load connection being subject to high voltage excursions relative to the common due to the switching, the control method comprising the steps of: producing at least one pulse output from a secondary winding of a transformer having a primary winding and a secondary winding and an inherent interwinding capacitance between the primary winding and the secondary winding; coupling the pulse output from the secondary winding between the input of the electronic means and the load connection when the pulse output is present, a high voltage excursion on the load connection charging the inherent interwinding capacitance to a high voltage level when the pulse output is present; and providing an electrical signal substantially free of inductive delay from the input of the electronic means to an active control means so that the active control means bypasses current from the input of the electronic means to the load connection and the high voltage level is prevented from actuating the electronic means when each high voltage excursion ceases.

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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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