Matches 651 - 700 out of 747 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
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H000497 Ratioed power on reset circuit  
A ratioed power on reset apparatus utilizing two pairs of field effect transistors as voltage dividers to generate a power on reset signal which tracks the waveshape of an applied power signal with...
4754166 Reset circuit for integrated injection logic  
A transistor circuit has a first series circuit of first and second resistors coupled between a power source line and a circuit ground line. A second series circuit of third and fourth resistors is...
4748352 Power source reset circuit for contactless switch  
Disclosed is a power source reset circuit which deactivates a contactless switch for a time interval determined by a delay means so as to prevent any erroneous output from the contactless switch...
4746820 Pulse frequency responsive switch  
A pulse frequency responsive switch includes a monoflop for receiving a pulse sequence. In response thereto, the monoflop generates a resulting square wave signal for application to an integration...
4737669 Slow-start system for a control circuit  
A control circuit having a slow-start section is enabled to carry out its expected, principal function(s) only after the voltage at the slow-start section input has reached a certain level. The...
4736119 Dynamic CMOS current surge control  
Integrated circuits having a large number of transmission gate logic stages have been found to draw a large current surge on power-up. This is due to the floating input node of complementary...
4717840 Voltage level sensing power-up reset circuit  
A power-up reset circuit for providing a reset signal for resetting circuit elements such as flip-flops upon the application of power to the circuit includes a CMOS pair output section and a...
4716323 Power voltage drop detecting circuit  
A power voltage drop detecting circuit includes VDD and ground terminals supplied with power voltage VD, a resistor connected at one end to the VDD terminal, a MOS transistor connected between the...
4716322 Power-up control circuit including a comparator, Schmitt trigger, and latch  
A device for controlling the states of various parts of a main circuit during "power-on" operations which includes an auxiliary circuit for generating a disabling signal when the value of the main...
4698531 Power-on reset circuit  
An integrated-circuit power-on reset arrangement which starts in a known state due to transistor sizing and to a current mirror circuit at least initially holding a bistable circuit in a...
4697097 CMOS power-on detection circuit  
A CMOS power-on detection circuit is described in which a rising supply potential is utilized to charge a capacitor and the voltage on the capacitor is coupled by one or more current mirrors to...
4686386 Power-down circuits for dynamic MOS integrated circuits  
A power-down circuit for saving operational power dissipation of a dynamic MOS integrated circuit during idling conditions. A clock divider generates a divided clock signal in response to an...
4670676 Reset circuit  
A reset circuit resets an internal circuit (3) included in an electronic apparatus. The internal circuit generates a pulse signal indicating that the internal circuit is in an enabled state. This...
4634904 CMOS power-on reset circuit  
A CMOS reset circuit has a reverse biased diode and a latch for latching a p-channel enhancement mode MOSFET on during the first part of the power-on cycle. The p-channel MOSFET is part of a...
4634905 Power-on-reset circuit having a differential comparator with intrinsic offset voltage  
A power-on-reset circuit which functions with variations in process, temperature and supply voltage is provided. A differential comparator structure is provided which utilizes a differential pair...
4633107 CMOS power-up reset circuit for gate arrays and standard cells  
A power-up reset circuit has a first circuit for sensing a source voltage potential and generating a reset signal at an output when the source voltage potential rises above a threshold level. An...
4614880 Power supply circuitry for a microcomputer system  
A power supply circuitry for a microcomputer system made up of a control unit including a microprocessor and a peripheral circuit, is provided with a delay switch circuit (55) for controlling the...
4611126 Power on/off reset generator  
A power on-off reset generator for monitoring a power supply for a logic system powered from the monitored power supply. A precision-voltage sensor produces a control signal for a time delay...
4607178 Reset signal generating circuit  
A semiconductor integrated circuit receiving at its input pin the terminal voltage of a capacitor which is connected to a power source through a resistor so as to detect the level of the power...
4591745 Power-on reset pulse generator  
A circuit for generating a pulse is disclosed for resetting certain multi-state elements of an electronic system after the power supply of the system has been activated and said elements have...
4581552 Power-up clear circuitry having two thresholds  
Power-up clear circuitry includes a latch which powers-up in a preferred state. Threshold detect circuitry changes the state of the latch when the supply voltage reaches its operating value, and...
4572966 Activity monitor, power-on clear circuit  
A power-on clear circuit is disclosed with a repetitive reset output for use with a microprocessor having a "heartbeat" activity monitor. The reset output is repeated at specified intervals until...
4560889 Automatic clear circuit  
In an autoclear circuit for producing reset signals for performing an initializing operation of a system simultaneously with the turning on of the system power supply, a first reset signal is...
4558233 CMOS power-on reset pulse generating circuit with extended reset pulse duration  
A source voltage buildup detecting circuit which detects, after the source is switched on, whether the source voltage is higher than a predetermined voltage and outputs a detecting signal. The...
4553054 Power on reset circuit for microprocessor  
A circuit for generating a pulse when a voltage (VDD) is applied thereto comprising an input (10) for receiving the applied voltage, an output (36), a first capacitor (16) connected to be charged...
4551841 One-chip semiconductor device incorporating a power-supply-potential detecting circuit with reset function  
A one-chip semiconductor device, such as a one-chip microcomputer, includes a power-supply-potential detecting circuit (9) which, when the power supply potential (V CC ) becomes lower than a...
4536667 Reset pulse generator  
A power supply circuit includes a regulator and a smoothing capacitor disposed at the input side of the regulator circuit for supplying power to a microcomputer included in a control system of an...
4528629 Electronic control apparatus with defined reset function  
To provide for starting of signal processing operations in a microprocessor (7), for example an automotive-type microprocessor, subject to frequent power interruptions, in which the processing...
4525674 Circuit for synchronizing a switching power supply to a load clock  
Circuitry for use in a power supply of the type which includes a power switching means and uses a waveform of predetermined shape to control the power switching means such as in a first mode the...
4520418 Reset circuit  
A reset circuit which monitors the voltage of the power supplied to a microprocessor unit, and produces a low resistance to ground at the reset terminal of the microprocessor whenever the supply...
4503344 Power up reset pulse generator  
A power up reset pulse generator circuit provides a reset pulse to initialize the states of logic elements in a low power field effect transistor (FET) integrated circuit. The reset pulse generator...
4482985 Semiconductor integrated circuit  
In order to permit reduced component size without reduction of an external power supply voltage, a semiconductor integrated circuit includes at least three circuits. The first of these three...
4469957 Resetting circuit for microprocessors  
A resetting circuit for microprocessors which facilitates the operation of a microprocessor even with extensively disrupted supply voltages. For this purpose, in a voltage stabilization circuit for...
4464584 Microprocessor with resetting circuit arrangement  
In a microprocessor with a reset circuit arrangement acting in dependence upon the inception of its supply voltage, safe operation is ensured after stoppages or operating voltage interruptions,...
4461963 MOS Power-on reset circuit  
A MOS power-on reset circuit includes Schmitt trigger circuit and an inverter. The Schmitt trigger circuit comprises first, second, and third depletion transistors serially connected between...
4449207 Byte-wide dynamic RAM with multiplexed internal buses  
An MOS dynamic RAM organized in a byte-wide arrangement is described. An internal bus is used for multiplexed column address signals and data. Other multiplexing reduced the lines associated with...
4446381 Circuit and technique for initializing the state of bistable elements in an integrated electronic circuit  
A circuit and technique provided as part of an integrated circuit for assuring that the circuit's many bistable elements are properly initialized into their desired state when the power is turned...
4438357 Level sensitive reset circuit for digital logic  
A circuit is provided for resetting a digital logic circuit, such as a digital counter. A switch 16 provides a first signal when a predetermined condition has occcurred. A flip-flop 24 provides an...
4433390 Power processing reset system for a microprocessor responding to sudden deregulation of a voltage  
A power processing circuit operatively and electrically connected to one regulated supply (16) voltage responds through a comparator means (24) and a monitor means (26) to generate a reset pulse...
4419596 Power on clear circuit  
A power on clear circuit in which a flip-flop circuit is formed by cross connecting two gate circuits which have logically inverting functions, with the output of the flip-flop circuit being used...
4409501 Power-on reset circuit  
A power-on reset circuit in which a first CMOS inverter drives a second CMOS inverter to turn on a third and fourth CMOS inverter. A reset pulse results at the output of the fourth inverter while...
4405871 CMOS Reset circuit  
A CMOS integrated circuit power-on reset circuit has two cascaded threshold detectors for independently sensing the supply voltage attaining an amplitude sufficient to operate N and P-channel...
4386281 Circuit for detecting loss of supply voltage  
A circuit (10) is provided for use in a telecommunications integrated circuit which has a memory for storing a telephone number. The circuit (10) essentially comprises a latch having differential...
4385245 MOS Power-on reset circuit  
A power-on reset circuit which deletes the need for resistors uses a current source transistor and a capacitor to provide a minimum time for the power-on reset signal. A load transistor replaces a...
4385243 Automatic reset circuit  
An automatic reset circuit located on an integrated circuit chip, for providing automatically a reset signal to circuit elements which are required to be reset when a power supply is turned on. The...
4367422 Power on restart circuit  
A power on reset circuit providing a reset signal to a microprocessor-based system upon its initial power up and a reinitializing reset signal in response to low voltage power supply transients.
4367423 Reset signal generator  
A reset generator circuit including a power monitor subcircuit which provides first and second logic level signals which specify the power supply as being above or below a preselected threshold...
4366560 Power down detector  
A circuit for detecting power supply variations in which a first and second transistor are connected in a cross-coupled mode. A load device is connected to each transistor and to a source of power....
4365203 Multi-frequency clock generator with error-free frequency switching  
A system clock generator includes circuitry for error-free switching of clock frequency. Frequency switching is necessary, for example, when the main power supply fails and to conserve standby...
4340851 Powerless starting circuit  
An improved start-up circuit is provided for self-biased circuits of the type connected to a supply voltage and having biasing currents stable at two operating points at which the biasing currents...
Matches 651 - 700 out of 747 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >