Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1990-06-22
1992-07-07
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307255, 3072961, 307300, H02K 112, H03K 301
Patent
active
051285533
ABSTRACT:
An integrated circuit is provided which uses a single drive signal for turning a PNP switching transistor "on" and "off." An NPN transistor provides reverse drive current to the PNP transistor's base. When the drive signal is present, the PNP switching transistor is turned "on" and is driven into saturation. The drive signal during this period also charges an integrated capacitor coupled to the base of the NPN transistor. The drive signal then is removed to turn the PNP transistor "off." Removal of the drive signal also causes the voltage developed across the capacitor to drive the base of the NPN transistor. This, in turn, causes the NPN transistor to drive the base of the PNP transistor with a reverse drive current, thus speeding up the switching of the PNP transistor from the conducting state to the non-conducting state.
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"Inductor and Emitter Follower Remove Stored Charge To Turn Off 4 A in 20 ns," Erick Burwen, Electronic Design 19, Sep. 13, 1979; p. 154.
"Turn Off Circuit," D. E. Norton, IBM Technical Disclosure Bulletin, vol. 7, No. 6, Nov. 1064; p. 428.
Linear Technology Corporation
Miller Stanley D.
Rowland Mark D.
Tran Sinh N.
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