Patent
Fast start-up circuit
TLDR
In this article, a sensor circuit with differential inputs Vi, Vo is used to reduce the rise time of a voltage Vo presented to a load, based on an input voltage Vi provided via an RC filter coupled to the load for removing higher frequency noise on Vo.Abstract:
The rise time of a voltage Vo presented to a load, based on an input voltage Vi provided via an RC filter coupled to the load for removing higher frequency noise on Vo, is substantially reduced by providing a sensor circuit with differential inputs Vi, Vo. The sensor circuit drives a charger circuit coupled to a DC potential and the load so that rapid charging of C to Vo does not depend on R. As Vo approaches Vi, the sensor circuit deactivates the charger circuit to stop further charging and a latch coupled to the sensor circuit shuts off the sensor circuit to reduce power consumption while (Vo˜Vi)>0. A current mirror buffer is desirably included between the sensor output and the latch for level shifting.read more
Citations
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TL;DR: In this article, an apparatus and a method to control an output signal from a DAC-driven amplifier-based driver are presented. But the authors do not specify the input and output terminals.
References
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Patent
Soft-start switch with voltage regulation and current limiting
Ulrich B. Goerke,Mark S. Pieper +1 more
TL;DR: In this article, a closed-loop feedback circuit was used to enable a soft-start switch with current limiting, where the op-amp can be triggered to gradually rise from a value close to zero to some reference voltage so as to soft start a load.
Patent
Low power VCC /2 generator
Karu Bii Oori,Wen-Foo Chern +1 more
TL;DR: In this paper, a CMOS intermediate potential generation circuit with a voltage reference state, an intermediate comparator stage, and an output stage is described, which is characterized by low standby current consumption, quick correction to deviations in the output voltage due to load variations, and quick response to generate a new intermediate potential relative to transitions of voltage supplies.
Patent
Reference voltage circuit allowing fast power up from low power standby condition
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Patent
Bipolar power supply
TL;DR: In this article, a bipolar power supply capable of selectably supplying either a positive or a negative voltage at an output terminal is described. But the power supply is not suitable for high voltage applications.
Patent
Semiconductor integrated circuit for outputting an intermediate potential
TL;DR: In this article, a small-sized semiconductor integrated circuit is provided in which the potential of a predetermined node can be set to an intermediate potential in a short period after a power source is turned on.