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4309627 |
Detecting circuit for a power source voltage
A detecting circuit for a power source voltage comprises a reference voltage generating circuit for generating a reference voltage, a voltage dividing circuit for dividing the power source voltage,...
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4293927 |
Power consumption control system for electronic digital data processing devices
A power consumption control system for electronic digital data processing devices is provided with a counter circuit to update a time count operation and to count a given time every time any one of...
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4269496 |
Power supply circuit for camera
A power supply circuit is so designed that the power supply is interrupted to the load after a predetermined period from a switch closing signal generated when the power switch is closed. The power...
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4268763 |
Conditioning circuit for use with I.sup.2 L and ISL logic arrays embodying two power supplies
Two independent power supplies for an I 2 L or ISL logic array can be timed to turn on at different times by a simple RC network connected externally of the logic array. The differential timing is...
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4260907 |
Power-on-reset circuit with power fail detection
A power-on-reset circuit with power fail detection, comprises a supply voltage V, and a voltage divider comprising two series resistors connected between V and the ground. The junction between the...
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4259594 |
Electrical power supply apparatus
Electrical power supply for use with apparatus which transmits a predetermined message. When an input signal is received, a source of electrical energy is connected to a power output terminal by...
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4254347 |
Power-on reset circuit for monolithic I.C.'s
A circuit for providing a control signal having a first predetermined magnitude in response to an analog voltage having a magnitude below a particular threshold and the control signal having a...
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4245150 |
Power line disturbance detector circuit
A power line disturbance (PLD) detector circuit includes a digital counter which is driven by pulses provided by a clock in an associated data processing system. The PLD detector circuit includes a...
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4234920 |
Power failure detection and restart system
A power failure detection and restart system for use with a microprocessor (microcomputer) control system includes first and second cascaded voltage comparators, the first of which responds to a...
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4210829 |
Power up circuit with high noise immunity
A power up circuit for an associated digital circuit is disclosed which prevents noise from falsely resetting the associated digital circuit after completion of the powering up function. The power...
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4208594 |
Power monitor for use in starting and stopping a digital electronic system
A power monitor for providing a low impedance path to ground for a digital electronic system under certain circumstances dependent upon the status of the A.C. energization has a normally closed...
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4196362 |
Clear signal generator circuit
A clear signal generating circuit for initializing a logic circuit upon the application of power to the logic circuit. The generator circuit comprises a level detection circuit for generating a...
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4142118 |
Integrated circuit with power supply voltage level detection
An MOS integrated circuit includes internal circuitry for detecting the voltage level of an external power supply. The internal circuitry comprises networks for producing two reference voltages,...
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4041334 |
Control circuit for actuating a device at a delayed time with respect to the turning on of a power supply and for deactuating the device substantially simultaneously with the turning off of the power supply
A control circuit includes two full-wave rectifiers connected to an AC power source to produce two rectified outputs having different phases with respect to each other, a combining circuit for...
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4035601 |
Electrical circuit arrangements responsive to serial digital signals forming multi-byte data-words
Envisages the use of a format of serial digital signalling in which each data word comprises a predetermined number of bytes formed by bits of substantially uniform duration and in which each byte...
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4035669 |
Operation-delayed switching circuit
A switching circuit designed to start operation after the lapse of a predetermined delay time from its connection to a power source. The switching circuit has a switch element which is rendered...
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4019070 |
Circuit for setting an initial state after connection of a power supply
An initial state-setting circuit wherein a malfunction preventing transistor is connected in series with an input transistor of a flip-flop, and is rendered conductive a short time after closure of...
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4013902 |
Initial reset signal generator and low voltage detector
A circuit for generating an initial reset signal for a custom design CMOS digital system and for providing a diagnostic low voltage detect signal when the power supply voltage drops below a...
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4005395 |
Compatible standby power driver for a dynamic semiconductor
A compatible standby power driving circuit for a dynamic semiconductor memory includes a low impedance, high power driving circuit connected in parallel with a high impedance, low power driving...
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4001609 |
CMOS power-on reset circuit
For each IC and adapted circuit is accommodated on the same semiconductor substrate in order to define a specific initial state of the circuit groups, which generally consist of flip-flops. The use...
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3983420 |
Signal generator circuit
A signal generator circuit which assumes a certain prescribed value upon closure of a power supply and which is inverted upon lapse of a predetermined time after the closure of the power supply,...
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3976895 |
Low power detector circuit
A low power detector circuit consists of the basic four MOS transistors of an MOS flip-flop and includes another pair of MOS transistors as well as voltage equalization circuitry. The added pair of...
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3969635 |
Voltage condition monitor
A device for monitoring a variable voltage supply level is disclosed. The monitoring device functions to supply a signal which may be used to shut-down that equipment being supplied and/or drive an...
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3950654 |
Power-on initializing circuit for a calculator system
An initializing circuit for automatically providing a pulse of a duration sufficient to initialize all the relevant storage elements in an electronic calculator computing system having one or two...
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3941989 |
Reducing power consumption in calculators
Continuous power and a high rate clock are supplied to a calculator while it is in an execute mode and is actually decoding and processing input information, but lower duty cycle power and lower...
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3904892 |
Supply dependent logic reset
A circuitry for use with a power source which supplies energy to electronic quipment that uses logic circuitry where there is a requirement that the logic circuitry be inhibited when the power...
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3895239 |
MOS power-on reset circuit
An automatic power-on reset circuit adapted for use on complementary MOS integrated circuit semiconductor dies is provided. The circuit includes a voltage reference stage followed by an amplifier...
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3894247 |
Circuit for initalizing logic following power turn on
A solid state delay circuit responsive to power turn-on for delaying the start-up and operation of a system until power has stabilized is disclosed. The delay circuit is particularly useful where...
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3893190 |
Power-up master clear control flip-flop
Apparatus for supplying a master clear logic signal for an indefinite time upon application of power to it, and dropping the master clear signal upon receipt of a reset signal.
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3846624 |
AUTOMATIC CLEARING DEVICE
In an electronic instrument having a storage unit, an automatic clearing device utilizes a portion of the storage unit as a constituent. A synchronizing signal generator generates a synchronizing...
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3838357 |
APPARATUS FOR USING START-UP OF A CRYSTAL OSCILLATOR TO SYNCHRONIZE POWER TURN-ON IN VARIOUS PORTIONS OF A SYSTEM
A pair of timing circuits, a pair of flip-flops, a crystal oscillator and a logic circuit provide a first group of signals while oscillations are building up and a second group of signals after...
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3794858 |
OFF DELAY TIMER AND PTC SENSING CIRCUIT
The disclosure relates to a timing circuit for use in conjunction with a protection circuit wherein, under normal operation, the timing circuit is isolated from the protection circuit. Upon sensing...
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3753011 |
POWER SUPPLY SETTABLE BI-STABLE CIRCUIT
A circuit for setting a bi-stable circuit such as a flip-flop in a predetermined state when power is applied to the bi-stable circuit is disclosed. The circuit is fabricated using MOS technology...
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3703648 |
RESET CIRCUIT FOR LOGIC SYSTEM IN QUIESCENT STATE FOR A PREDETERMINED TIME UPON APPLICATION OF POWER AND UPON POWER FLUCTUATIONS BELOW A PREDETERMINED LEVEL
A Zener diode is placed in series with the base of a transistor, which provides a reset signal when not conducting, to prevent conduction of the transistor until the breakdown voltage of the Zener...
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3651427 |
OSCILLATOR SYNCHRONIZATION
A relaxation oscillator having a natural frequency substantially the same as the frequency of a source of AC power is synchronized from the power source without the use of any DC connection to or...
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3638040 |
SYSTEM FOR ASYNCHRONOUS SWITCHING OF A LOAD FROM ONE POWER SOURCE TO ANOTHER
A system employing power transistors for transferring a load between two ependent power sources at any phase angle and in less than 20 microseconds. The system is unique in that it is extremely...
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3599016 |
AUTOMATIC RESET CIRCUIT
A reset circuit, for a logic circuit which processes pulses of at least a given time width, comprises a race loop circuit including a flip-flop, a gate having an input-to-output transfer delay...
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3597629 |
TEMPORARY MEMORY RESTORE CIRCUIT FOR MULTIVIBRATOR
There is provided a temporary memory restore circuit for actuating a bistable multivibrator to its last stable state prior to removal of power, when power is returned to the circuit. The memory...
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3560767 |
DELAY CIRCUIT ARRANGEMENT
An arrangement for delaying the application of a voltage supply for a predetermined time interval. An auxiliary voltage supply of identical polarity and with one terminal at a level exceeding the...
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3549906 |
CONTROL CIRCUIT RESPONSIVE TO POSITIVE OR NEGATIVE TRANSIENT SIGNAL OR TO POWER SUPPLY VOLTAGE DECREASE TO FIRE SCR
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3218473 |
Transistor state setting circuit
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3200258 |
Time delay static switch with impedance matching and rapid reset means
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3183372 |
Control and synchronizing circuit for a wave generator
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2905877 |
On-off servosystem with proportional control features
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2903607 |
Flip-flop resetting circuit
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3560861 |
Title is not available
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