Patent
Power-on reset circuit for monolithic I.C.'s
TLDR
In this article, 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 being above the particular threshold includes a threshold establishing circuit, a first transistor and a second transistor.Abstract:
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 second predetermined magnitude in response to the magnitude of the analog voltage being above the particular threshold includes a threshold establishing circuit, a first transistor and a second transistor. The threshold establishing circuit receives the analog voltage and enables the first transistor to remain non-conductive until the analog voltage reaches the threshold. The second transistor is connected to the first transistor and to the analog voltage supply. The second transistor is arranged to be initially conductive as the magnitude of the analog voltage rises, and to become non-conductive in response to the first transistor being rendered conductive so that the desired control signal is developed at an output electrode of the second transistor.read more
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Patent
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Patent
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Patent
Circuit for limiting inrush current through a transistor
Scott C. Willis,Mark J. Jones +1 more
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Patent
Self-disabling power-up detection circuit
TL;DR: In this paper, a CMOS power-up reset circuit provides a powerup output signal, useful to external circuits, when an applied power supply voltage exceeds a first predetermined value, and includes a ratioed transistor divider to generate a voltage on a sensing node which is a portion of the power input voltage during a power up transient.
Patent
Method and apparatus for a voltage responsive RESET for EEPROM
Scott C. Willis,Mark J. Jones +1 more
TL;DR: In this paper, an under voltage lockout {overscore (RESET)} circuit output voltage does not have a "floating voltage" which rises to a level higher than its value when a comparator initially senses that a power supply voltage source voltage is less than a predetermined amount.
References
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Patent
Switching voltage regulator with input low voltage and output voltage detectors
TL;DR: In this paper, the Schmitt trigger regulator is actuated when the output voltage decreases below a certain maximum value and is disabled as the output potential goes below a minimum value; it is also actuated if the output output voltage increases to this minimum value and when it decreases below this same minimum value.