Matches 151 - 200 out of 311 < 1 2 3 4 5 6 7 >
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5272398 Driver for power field-controlled switches with refreshed power supply providing stable on/off switching  
Drivers for field-controlled switches are powered and switched on and off by the same combined command and power signal which consists of a command signal modulated by a clock signal forming a...
5268588 Semiconductor structure for electrostatic discharge protection  
A semiconductor structure (30) is provided for electrostatic discharge protection. A first bipolar transistor (Q1) has a collector electrically coupled to a first node (12), a base electrically...
5247208 Substrate bias generating device and operating method thereof  
A substrate bias generating circuit including waveform shaping circuits for producing two signals having different phases on the basis of signals in phase extracted from a ring oscillator and two...
5243232 Start-up pulse suppression circuit for industrial controller output  
A flash-on reduction circuit for use in the binary state output circuitry of an industrial controller employs a current conductor to charge parasitic capacitances of the output circuitry when the...
5243231 Supply independent bias source with start-up circuit  
A supply independent bias start-up circuit which is capable of preventing an additional current consumption which may occur therein after the start-up of a supply independent bias circuit thereof,...
5243233 Power on reset circuit having operational voltage trip point  
In an integrated circuit having circuit components such as SRAM cells requiring a finite voltage level for operation, a power on reset circuit includes one of the circuit components in its output...
5233234 Emitter follower output circuit  
An emitter follower output circuit includes a first bipolar transistor for outputting a potential from its emitter to an output terminal and a second bipolar transistor, connected in series to the...
5214316 Power-on reset circuit device for multi-level power supply sources  
A power-on reset circuit device has a first power-on reset circuit which outputs a first reset signal, when an external power supply voltage reaches a first reference voltage, for resetting a DC-DC...
5212412 Power on reset circuit having hysteresis inverters  
A power on reset circuit uses a first inverter with hysteresis operating in response to a first power supply potential to develop a first reset signal when the first power supply potential is...
5204554 Partial isolation of power rails for output buffer circuits  
An output buffer circuit (10) delivers output signals of high and low potential levels at an output (V OUT ) in response to data signals at an input (V IN ). The output buffer circuit comprises an...
5191244 N-channel pull-up transistor with reduced body effect  
A CMOS output buffer circuit employing an N-channel pull-up transistor with reduced body effect includes an N-channel pull-up transistor (N2), an N-channel coupling transistor (N1), and an...
5184036 Method of limiting output current from an interface drive circuit  
A circuit limits the output drive current from an interface drive circuit comprising drive transistors. The circuit makes dual use of an external series supply resistor as a current sensing...
5182470 Negative overvoltage protection circuit, in particular for output stages  
An output stage with a protection circuit against negative overvoltage at its output terminal, having a transistor with collector output and with the emitter connected to a reference voltage line;...
5157285 Low noise, temperature-compensated, and process-compensated current and voltage control circuits  
The present invention discloses techniques for reducing the low ambient temperature current consumption of circuits used along with sensing circuits in Programmable Logic Devices. Further,...
5157287 Semiconductor circuit device with input threshold value correction circuit  
A semiconductor circuit device which has a first stage logic circuit for receiving an external input signal and a plurality of inverters for forwarding an output signal from said first stage logic...
5149991 Ground bounce blocking output buffer circuit  
An output buffer circuit incorporates a ground bounce blocking circuit which blocks transfer of ground bounce pulses from the output ground lead (GND,PGND) to the output (V OUT ) for protecting...
5140183 Rush current prevention circuit  
A second circuit to which back-up power is supplied, such as a RAM, is connected downstream of a first circuit to which no back-up power is supplied, such as a CPU. A gate circuit inhibits the...
5122693 Clock system implementing divided power supply wiring  
Integrated circuits in which a phase difference between the external and internal clocks can be reduced by decreasing transistor stages from the input of an external clock to the output of an...
5047663 Low-power comparator which tolerates high-slew-rate incoming signals and deriving power from the incoming signals  
An integrated circuit which includes switching logic to select its negative power supply voltage from the more negative of two signals (preferably ground and an input signal). Special MOS clamp...
5047988 Disposable IC memory card having an embedded battery  
A battery circuit including an embdedded battery is incorporated in a disposable integrated circuit (IC) memory card having a memory. The battery voltage is higher than a predetermined holding...
5043598 High voltage supply having a voltage stabilizer  
A high voltage generating circuit which includes a switching circuit for switching a DC input, a fly-back transformer whose input coil is driven by pulses delivered from the switching actuation of...
5012131 Power supply noise compensation for a high frequency phase detector  
A phase detector circuit which compensates for unwanted variations induced in an input signal by the operation of a thresholding input circuit such as a frequency divider. The circuit monitors the...
4965466 Substrate injection clamp  
A substrate injection clamp uses a pre-existing NPN open-collector transistor to provide substrate protection for the parasitic diode formed between the collector of the transistor and the...
4930112 Semiconductor device having a voltage limiter  
A semiconductor device comprising a plurality of circuits driven by at least one external power source, and at least one voltage converter transforming the voltage of the external power source into...
4926073 Negative voltage clamp  
A negative voltage clamp circuit is coupled to an N-epi region within an IC for clamping the voltage applied thereto to a predetermined negative value without utilizing a negative power supply. A...
4900951 Latch-up restoration circuit  
A latch-up restoration circuit for an electronic circuit generating a signal having a predetermined operating frequency such as a microcomputer, comprises a latch-up sensing device sensing a state...
4896244 Feed forward compensation circuitry and switching logic driver with overcurrent protection incorporating same  
A circuit for coupling transitional energy from the output of a transmitting circuit to the input of a receiving circuit in advance of the normal connective path, which contains an inherent circuit...
4887071 Digital activity loss detector  
A digital activity detection circuit is provided for monitoring digital input signals such as telecommunications DS1 or DS2 signals, and for generating an alarm when a predetermined input signal...
4882506 Low voltage and low power detector circuits  
Low voltage and low power circuits for use in a subscriber power controller includes a low voltage detection circuit for generating a first output signal switching between ECL logic levels and a...
4849654 Semiconductor integrated circuit with input protection circuit  
A semiconductor device having an input protection circuit is disclosed. The semiconductor device includes a power-on reset circuit which generates a pulse having a pulse width determined according...
4848876 Electronic control circuit for preventing abnormal operation of a slave control circuit  
In an electronic control system having a main CPU and a slave CPU which is under the control of the main CPU, a power control circuit is provided between the power source and the slave CPU to stop...
4812677 Power supply control with false shut down protection  
An circuit arrangement acts in response to an external wake signal to provide fail-safe, battery saving control to a power supply. The arrangement includes a power supply, a microcomputer which is...
4791317 Latch-up protection circuit for integrated circuits using complementary mos circuit technology  
A latch-up protection circuit for an integrated circuit using complementary MOS circuit technology has a substrate bias generator that applies a negative substrate bias to a semiconductor substrate...
4788454 Power-on reset circuit  
A reset circuit for a logic circuit comprises a MOS transistor having a gate coupled to a power supply, a source receiving a reset input and a drain whose potential is high when the reset input is...
4704654 Over-voltage protective circuit for semiconductor network  
To protect electrical equipment against excessive applied input signals which, for example, may be analog signals, excessive with respect to positive or negative excess voltage in relation to an...
4691304 Semiconductor device having an arrangement for preventing operational errors  
This invention relates to a semiconductor device formed on a semiconductor chip which is provided with at least a voltage transformation arrangement for transforming an external power supply...
4675551 Digital logic bus termination using the input clamping Schottky diodes of a logic circuit  
A digital logic bus termination module that is to be plugged into a TTL logic backplane bus and in which the module includes a TTL logic circuit chip package having multiple terminals including a...
4646132 IC socket having a backup power cell and circuit  
An IC socket is provided which has a cell acting as a back-up cell for an integrated circuit and a back-up circuit for supplying electric power of the cell to the integrated circuit.
4636658 Voltage detecting device  
A voltage detecting device including a voltage dividing circuit (VD) formed by two capacitors (C 1 ', C 2 ) connected in series, an inverter circuit (INV) for detecting whether the potential at...
4631418 Power supply control device  
A power supply control device is usable in a battery-driven electronic device, in which a power down mode is adopted when the battery is mounted.
4605863 Digital control circuit  
The present invention relates to a digital control circuit which controls the drive of a load by the use of a clock pulse. More particularly, it relates to an integrated circuit device for...
4599672 Failsafe power-up/power-down switch  
A power-up/power-down safety switch includes a simple, low-cost circuit having one AND gate, which may be a CMOS IC, one voltage-limiting diode and three resistors. The circuit functions in...
4594517 Power down sensor  
The loss of an AC supply voltage is detected by sensing the amplitude of the AC voltage relative to the reference potential about which it periodically goes positive and negative. Whenever the...
4575647 Reference-regulated compensated current switch emitter-follower circuit  
A network composed of a plurality of compensated current switch emitter-follower logic circuits and a generator of a current source control potential for the current sources of the logic circuits...
4567539 Power interruption and brownout detector  
This invention relates to apparatus which can detect both interruptions and reductions in an alternating current input extremely quickly. This allows an orderly shut down of the equipment before...
4531065 Current injection type logical operation circuit arrangement including a I.sup.2 L circuit device comprising I.sup.2 L elements  
A I 2 L circuit device including logical operation circuits comprising I 2 L elements, wherein when main power supply is interrupted, an injector current is injected from an auxiliary current...
4530027 Power failure protector circuit  
A power failure protector circuit prevents spurious output signals from an electronic circuit when power to the electronic circuit is interrupted. The output of the electronic circuit is...
4516263 Spatially integral, video signal processor  
A video signal processor, particularly for use in identifying light source position, in which a video signal stream from an image detector is processed directly on a substrate using charge coupled...
4481429 Bias supply for A.C. line powered apparatus  
Direct current isolation and A.C. power line voltage reduction are provided in a first D.C. power supply by means of transformer coupling and in a second D.C. power supply by means of capacitor...
4476402 VMOS-FET IMPATT diode pulse bias circuit  
This invention describes a VMOS-FET, IMPATT diode pulse bias circuit desid to provide a Gallium Arsenide IMPATT diode with a specified operating voltage and current under required conditions to...
Matches 151 - 200 out of 311 < 1 2 3 4 5 6 7 >