Class 327/481 - Multiple collector transistor

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein the bipolar transistor has at least
No. of patents: 38
Last issue date: 05/04/2004

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Number	Title	Issue Date
6729318	System and process for controlling the step response of electric components An electronic component, such as an IGBT, that presents a control terminal for receiving a stepwise control signal and at least one other terminal adapted for reaching a given voltage level by effect of the application of the step signal, with the possibility of ove...	05/04/2004
6459321	Gate protection clamping circuits and techniques with controlled output discharge current Gate protection clamping circuits and techniques with controlled output discharge current are provided. Circuits and methods according to the invention are implemented to relatively rapidly disengage single or multiple loads from a power supply without cr...	10/01/2002
6081139	Differential amplifier with lateral bipolar transistor The present invention provides a differential amplifier. The differential amplifier includes first and second inputs and an output. The differential amplifier further includes a lateral bipolar transistor. The lateral bipolar transistor includes a well re...	06/27/2000
5717348	Self adjusting edge detector circuit A edge detector for the production of output signal in a manner dependent on positive and negative edges of a square wave signal comprises a differential amplifier with two base-coupled transistors (Q1, Q2). Each emitter of such transistors is connected v...	02/10/1998
5703520	Integrated inductive load snubbing device using a multi-collector transistor A transient suppressor comprises a self-triggered silicon control rectifier (SCR) that forms a drive circuit for an NPN power transistor. The SCR and the NPN power transistor are combined, along with other elements, into an integrated circuit (IC) by a ju...	12/30/1997
5532627	Stackable voltage comparator circuit for a multiple voltage window detector A stackable voltage comparator circuit that may be used in an analog voltage address decoder circuit for performing voltage window comparisons. The voltage comparator circuit includes a plurality of voltage comparator circuit cells, each of which includes...	07/02/1996
5514949	Current mirror with at least one PNP-transistor A current mirror having at least one pnp-transistor and providing overvoltage protection has three collectors designed as partial collectors. Two of the partial collectors and the base are linked to a reference-current source and the other partial collect...	05/07/1996
5453712	Circuit for accurately discharging a capacitor A subcircuit for discharging a capacitor at a preselected rate incorporates a first transistor and a second transistor connected with the emitter of the first transistor providing current to the collector of the second transistor. The base of the first tr...	09/26/1995
5424676	Transistor collector structure for improved matching and chokeless power supply connection Internal to the transistor, an additional, direct connection is made from the internal collector to the external collector of the transistor by a fixed shunt inductance. The external power supply Vs is applied to the transistor collector throug...	06/13/1995
5262682	Level converter circuit having two multi-collector transistors for simplifying circuit configuration A level converter circuit having hysteresis characteristics between an input voltage and an output voltage comprises two multi-collector transistors constituting a differential amplifier, a reference voltage control unit for controlling a reference voltag...	11/16/1993
5017816	Adaptive gate discharge circuit for power FETS An adaptive gate discharge circuit for discharging the gate of a power FET transistor. The adaptive gate discharge circuit includes discharge driver circuitry which responds to the control signal by discharging the power FET gate from the initial "on" pot...	05/21/1991
4807009	Lateral transistor In a lateral transistor having a first semiconductor region of one conductivity type, and an emitter region and a collector region both having the opposite conductivity type and disposed in the first semiconductor region; a second semiconductor region hav...	02/21/1989
4663598	Monolithic switch A current mirror which is stable and accurate for a broad range of beta gain factors of the individual transistors thereof has two transistors of one type connected substantially as a Darlington pair. A multiplying, multi-collector transistor of the oppos...	05/05/1987
4509182	Binary counter A binary counter consists of some unit stages having a first pair of coincident gates composed of a first and a second coincident gates, a first input terminal of each being cross-coupled with the other's output terminal, and a second pair of coincident g...	04/02/1985
4435651	Zero voltage switch A zero voltage switch comprises two parallel connected current branches for taking over the D.C. current from a D.C. current source in half cycles of an A.C. voltage and a third current branch for blocking the other two current branches in zero axis cross...	03/06/1984
4429234	Threshold switch To permit evaluation of only slowly changing low amplitude undulating signals, derived for example from a wheel-speed transducer of a brake anti-block system, and to obtain essentially square-wave output voltage signals having a 1:1 pulse to pulse gap rat...	01/31/1984
4423409	Digital-to-analog converter having single-ended input interface circuit A digital-to-analog converter circuit includes an open-loop reference circuit for regulating a plurality of bit switch currents and utilizes a high-speed single-ended input interface network for level shifting digital input signals to the bit switches whe...	12/27/1983
4396889	Nonadjusting battery life detector A battery life detector operates by sensing battery voltage. The detector consists of a pair of series combinations of a constant voltage source and a constant current source which are connected to a terminal to which a battery voltage is applied. The con...	08/02/1983
4371792	High gain composite transistor A composite transistor suitable for use in monolithic integrated circuits is characterized as having extremely high current gain, stable operation and low leakage current. Two vertical NPN transistors are coupled into a circuit configuration, along with t...	02/01/1983
4346313	Monolithic integrated threshold switch This invention relates to a monolithically integrated threshold switch which switches on at an upper voltage value of a hysteretic characteristic and switches off at a lower voltage value especially adapted to I2 L ICs. Over a resistance the va...	08/24/1982
4341960	I² L Static shift register Each bit of the register includes a plurality of active elements which perform as NOR logic gates. Each active element comprises an I2 L unit consisting of a bipolar inverter transistor and a bipolar injector transistor. Each element is cross-c...	07/27/1982
4266100	Monolithically integrated semiconductor circuit A monolithically integrated semiconductor circuit, provided for coupling arrangements having symmetrical cross points, comprising two through switching NPN transistors, and a composite circuit for switching through the switching transistors. The composite...	05/05/1981
4258330	Differential current amplifier A differential amplifier circuit wherein one collector of the multicollector of each of first, second and third inverse NPN transistors is connected to a base of the corresponding transistor; the first and second transistors are used as differential input...	03/24/1981
4232234	Semiconductor switch circuit In a semiconductor switch circuit employing at least one 4-terminal PNPN switch having a cathode gate and an anode gate for switching an AC signal, a current supplying circuit is connected to the cathode gate of the PNPN switch, and a current sinking circ...	11/04/1980
4203043	Tristate changeover switching circuit A switching circuit having a current source connected to first, second and third lines in order to supply first and second current signals whose total amount remains constant to the first and second current lines, respectively. The current source further ...	05/13/1980
4188548	Semiconductor switching circuit A semiconductor switching circuit comprising a semiconductor element having an equivalent four-layer structure of a PNPN conductivity type formed by connecting the collector and the base of an NPN transistor respectively with the base and the collector of...	02/12/1980
4112346	Constant current circuit A constant current circuit includes two characteristic-correlated PNP transistors connected to a constant voltage source and having common-connected emitters and common-connected bases and an NPN transistor. A constant current is taken out of a collector ...	09/05/1978
4096399	Crosspoint bias circuit arrangement A semiconductor transmission circuit arrangement which utilizes symmetrical transmission transistors and bias circuitry which exhibits a high output impedance and is arranged to maintain equal d.c. bias currents in the base and the emitter/collectors of t...	06/20/1978
4085339	Circuit arrangement in a complementary CHL technique A circuit arrangement CHL technique (current hogging logic) includes individual CHL arrangements each having an emitter, control collectors and an output collector and arranged within an epitaxial layer. The individual CHL arrangements are complementary w...	04/18/1978
4081822	Threshold integrated injection logic Integrated injection logic circuits and semiconductor devices employing threshold functions. Multiple-collector input transistors have their collectors connected to the bases of one or more output transistors. The output transistors have different weighte...	03/28/1978
4071779	Semiconductor switch A semiconductor switch of a PNPN structure comprises a PNPN switch of an equivalently four-layered structure including a P-type anode, N-type cathode, N-type gate and P-type gate, a first NPN transistor, a second PNP transistor, a level shifting circuit, ...	01/31/1978
4068254	Integrated FET circuit with input current cancellation An integrated circuit including an FET and an analog for cancelling input current that would otherwise be required to supply the FET gate leakage current. The analog establishes a leakage current the magnitude of which is a substantially fixed proportion ...	01/10/1978
4066915	Memory circuit A memory circuit is comprised of a memory cell of PNPN- equivalent 4-layer construction, a selective input circuit composed of a pair of an NPN transistor and a PNP transistor, and a read-out circuit for reading the information stored in the memory cell. ...	01/03/1978
4054898	Switching system to short-circuit a load with minimum residual voltage A controlled main switch, typically a semiconductor switch, is connected in parallel to the load. In accordance with the invention, an auxiliary switch, typically also a semiconductor switch such as a switching transistor is directly connected across the ...	10/18/1977
4051394	Zero crossing AC relay control circuit An AC relay control circuit comprising a pair of back-to-back, series connected zener diodes control current flow through a control resistor. The control resistor is connected in parallel with parallel, reverse-connected light emitting diodes forming the ...	09/27/1977
4023111	Current limiting driver circuit A driver circuit in which the output current is limited to a particular value. A very low value resistance in the output stage senses the current and modulates the conduction to a diode-amplifier combination. The combination employs ratioed emitter areas ...	05/10/1977
4013898	Hysteresis circuit A differential amplifier including first and second transistors is provided. A first input terminal is connected via a resistor to the base of the first transistor, a second input terminal is connected to the base of the second transistor, and the emitter...	03/22/1977
3989957	Count-of-ten semiconductor structure A count of ten divider uses plural divide-by-two circuits, plural NOR gates and an inverter formed in a semiconductor body all of the foregoing being in a collector-up configuration....	11/02/1976

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Class 327/481 - Multiple collector transistor