Browse Prior Art Database

Power Supply Integration Using Low Voltage Technology

IP.com Disclosure Number: IPCOM000043934D
Original Publication Date: 1984-Oct-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 71K

Publishing Venue

IBM

Related People

Bhansali, M: AUTHOR [+7]

Abstract

The module described herein is useful for voltage regulation applications of the type required in electronic system power supplies, and is packageable in high density LSI chips requiring low voltage inputs and incorporates the following techniques to minimize its size and maximize its function: 1. Merging OV-UV (Over Voltage-Under Voltage) and short circuit detection I/O pins with the negative feedback terminal of the linear amplifiers 1. 2. Utilizing a common reference for regulation and OV-UV detection 2. 3. Utilizing low voltage technology for maximum density and lowest cost. 4. Utilizing a different scheme for OV-UV detection which minimizes device count 3. See the preceding article. 5.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 60% of the total text.

Page 1 of 2

Power Supply Integration Using Low Voltage Technology

The module described herein is useful for voltage regulation applications of the type required in electronic system power supplies, and is packageable in high density LSI chips requiring low voltage inputs and incorporates the following techniques to minimize its size and maximize its function: 1. Merging OV-UV (Over Voltage-Under Voltage) and short circuit detection I/O pins with the negative feedback terminal of the linear amplifiers 1. 2.

Utilizing a common reference for regulation and OV-UV detection 2. 3. Utilizing low voltage technology for maximum density and lowest cost. 4. Utilizing a different scheme for OV-UV detection which minimizes device count 3. See the preceding article. 5. Utilizing an improved active gain cell 4 to eliminate external capacitors, normally needed to compensate amplifiers, by using the parasitic capacitance at the output I/O pin. The module is voltage buffered on the output by an FET (not shown) with a large voltage breakdown. Its gate is controlled with the low voltage output of the module. On the input side, all high voltages are fed back via scaling resistors which convert any high voltage regulated output to 2.5 V. The module accepts 10 input levels. Eight levels are positive, and two are negative. All levels are monitored for over-voltage, under-voltage and short circuit. Linear regulators are provided for both negative levels and positive levels. When trying to integrate...