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5963065 Low offset push-pull amplifier  
A low offset amplifier has an output stage constituted by an npn transistor and a pnp transistor in a push-pull arrangement, and a driver stage. The latter includes a current-mirror circuit having,...
5945868 Power semiconductor device and method for increasing turn-on time of the power semiconductor device  
A power semiconductor device (10) and a method for increasing the turn-on time of the power semiconductor device (10). The power semiconductor device (10) has a first stage (13) and a second stage...
5894237 Write driver with buffer circuits between pull-up resistors and upper drive transistors  
A write driver, having a pair of head pins for connection to a write head, includes two push-pull buffer circuits connected respectively between first and second pull-up resistors and the control...
5781046 Push-and-pull driver circuit for driving an H-bridge coupled to a two-terminal inductive load  
A write driver for a two-terminal inductive load comprises an H-bridge switching circuit and a push-pull driver circuit. The H-bridge switching circuit responds to a first mode to conduct a current...
5444395 Non-saturating bipolar transistor circuit  
A non-saturating transistor circuit (11) having a first terminal (13), a control terminal (12), and a second terminal (14). The first terminal (13), control terminal (12), and second terminal (14)...
4767945 Analog signal multiplexer  
An analog signal multiplexer for differential signals comprises a plurality of channels, each channel having a pair of differential amplifiers forming an input stage for receiving a differential...
4739190 Monolithically integratable high efficiency switching circuit  
A high efficiency switching circuit, which may be monolithically integrated, includes a power output transistor which is driven to switch by means of a second transistor coupled to its control...
4672235 Bipolar power transistor  
A power transistor comprising a plurality of elementary transistors coupled in parallel and an identical number of current generators, each of which has a terminal coupled individually to the base...
4651033 Device for complementary input signals using two circuits with different threshold voltages  
A differential switching circuit includes a first current switching circuit having a first input terminal; a second current switching circuit having a second input terminal and a threshold...
4616142 Method of operating parallel-connected semiconductor switch elements  
In power circuit designs, it is sometimes necessary to connect two or more semiconductor power switches in parallel and to simultaneously operate both so that current levels in excess of the rated...
4612452 Control circuit for the switching of inductive loads having a push-pull output stage  
A control circuit for the switching of inductive loads which is monolithically integratable and includes an output stage having push-pull transistors. The base of each transistor of the output...
4568838 Control circuit for a semiconductor element with a control electrode  
A control circuit for a semiconductor element with a control electrode includes a signal transmission circuit, in which two switching elements made conductive when a control signal is supplied from...
4501932 Solid state electronic dial pulse receiver circuit  
An electronic switch for use in the tip and ring circuit of a rotary dial telephone pulsing system is disclosed. The electronic switch is a functional replacement for a single pole, double throw...
4390799 Temperature compensated switchable current source  
A voltage-to-frequency converter wherein a monostable multivibrator is fed by an integrator which periodically activates a switchable current source coupled to the input of the integrator for a...
4349750 Switching circuit comprising a plurality of input channels and an output channel  
A switching circuit in which one out of a plurality of input channels is connectable to an output channel via one of the switching devices in the circuit. Each of the switching devices comprises an...
4313065 Switching circuit with MOS field effect transistor  
A switching circuit with MOS field effect transistors includes a DC voltage source having first and second terminals, first and second MOS field effect transistors each having gate, source, drain...
4283638 Field effect transistor switched temperature control circuit  
Two field effect transistor device means are utilized in conjunction with a special type of transformer having a low impedance primary winding and a high impedance primary winding to energize a...
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...
4190778 A.C. supplied integrated semi-conductor logic circuit  
An integrated semiconductor circuit arrangement includes active and passive function elements in a semiconductor body and a high frequency a.c. voltage is used as a supply voltage for the function...
4138614 JFET switch circuit  
JFET and bipolar transistor devices are combined into an analog signal switching circuit. A JFET acts as a switch device for controlling analog signals. The JFET gate is charged through a bipolar...
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...
4020364 Resistance read amplifier  
Resistance read amplifier in which a resistor the resistance of which is to be determined is connected by an electronic selection switch to a constant-current source which at the same time switches...
3986051 Signal switching apparatus  
Signal switching apparatus is disclosed whereby a selected one of a plurality of supplied input signals is switched to an output terminal, including a switching circuit having plural input...
3919567 Signal gate circuit  
A differential circuit including first and second differentially connected semiconductor devices and a third semiconductor device connected in series between the common terminal of the...
3911294 Driver circuit for high speed gating of a field effect transistor  
A circuit for gating field effect transistors which is specifically advantageous for gating junction field effect transistors is disclosed. The circuit includes means for operating the gated or...
3869623 ELECTRONIC SEQUENCE SWITCH WITH HOLDING CIRCUIT  
An electronic sequence switch having a holding circuit is prevented from inadvertent release in response to disturbance pulses by a non-linear element which provides a relatively low resistance...
3855520 CONTROL HAVING CONDUCTION LIMIT MEANS TO VARY DUTY CYCLE OF POWER SWITCH  
A pulse width modulation control for supplying variable width voltage pulses from a battery to a motor includes a power switch, an oscillator for providing a succession of triggering pulses, a...
3828206 HIGH SPEED DRIVING CIRCUIT FOR PRODUCING TWO IN-PHASE AND TWO OUT-OF-PHASE SIGNALS  
The circuit includes four transistors, each transistor being connected at its emitter to a different one of four switches arranged in a bridge configuration. The four transistors are paired, each...
3800166 HIGH VOLTAGE SOLID STATE SWITCHING TECHNIQUES  
A high voltage solid state switching technique and apparatus are disclosed for supplying an essentially capacitive load which may operate at several different voltage levels. The technique provides...
3780316 DATA DISTRIBUTION LINE ARRANGEMENT  
A data distribution line arrangement with transmitting and receiving gates which are connected to a distribution line wherein the transmitting gates respectively provide data to the distribution...
3731117 ELECTRONIC GATING CIRCUITS  
In an electronic circuit in which a gating circuit is connected between a transistor or other semi-conductor element and an output terminal, the offset normally introduced by the transistor is...
3711728 SOLID STATE DOUBLE-POLE DOUBLE-THROW RELAY  
A solid state DPDT relay circuit having two pairs of PNP transistors, one pair normally conductive so as to provide a closed current path to terminals connected to the collectors of its transistors...
3656008 GATE CIRCUIT FOR ELECTRONIC MUSICAL INSTRUMENTS  
A sustaining gate circuit for musical instruments comprising a differential amplifier stage including a pair of transistors the emitters of which are connected in common and a constant current...
3648069 DIFFERENTIAL TRIGGER CIRCUIT  
An integrated, differential, symmetrical-hysteresis trigger circuit includes an input differential amplifier using lateral PNP-transistors, driving an output differential switch using cascaded...
3602739 DIGITAL MAGNETIC RECORDING CIRCUIT BIDIRECTIONAL LOAD SWITCHING HAVING HIGHER LOAD VOLTAGE AT TIME OF REVERSAL  
A circuit is disclosed for reversing the current through an inductive element, such as a coil of a magnetic recording head used for digital recording, wherein two pairs of translating devices, such...
3582758 RECTIFIER USING LOW SATURATION VOLTAGE TRANSISTORS  
A circuit is employed utilizing the low collector-emitter voltage of a saturated transistor to obtain more efficient rectification of an alternating current supply than is achieved by a diode. A...
3573822 RANGE-GATED DOPPLER FILTER  
A range-gated doppler filter having a balanced input switch with cancelling feedback supplied to the switch from a following low-pass filter section.
3571623 TRANSISTORIZED SWITCHING CIRCUIT AND DRIVER MEANS THEREFOR  
A transistorized switching circuit which employs a driver means that provides turn-on and turnoff driver signals to control input. The driver circuit provides a constant turnoff time period for the...
3571614 TRANSISTOR SWITCH WITH MINIMIZED TRANSITION POWER ABSORPTION  
A transistor switch, an inductor and the load are serially connected so that during turn-on transition of the transistor, the inductor holds back current flow until the transistor is saturated. A...
3506852 METHOD AND APPARATUS TO PROVIDE ZERO ANGLE FIRING OF A STATIC LATCHING SWITCH IN A NOISE-FREE ELECTRIC CONTROLLER  
3501648 SWITCHING CIRCUIT  
3461320 BALANCED GATING CIRCUIT FOR RADAR RECEIVER  
3458727 POLAR TELEGRAPHY RECEIVE CURRENT LOOP WITH SOLID-STATE SWITCHING BRIDGE  
3437842 FAIL SAFE BRIDGE OUTPUT SWITCH  
3312836 Circuitry for positioning gating waveforms for gating with minimized switching transients  
3305709 T-shape field-effect switch having a continuous high output impedance  
3239692 Gate circuit which uses the output signal to control bias of an input trigger circuit  
3143668 Power saving switch driver system  
3136899 Low impedance switching circuit utilizing zener diode gate  
3122697 Short circuit protective device  
Matches 1 - 50 out of 54 1 2 >