Hyun Ai Shin

US Patent:

57035326, Dec 30, 1997

Filed:

Jan 18, 1996

Appl. No.:

8/588218

Inventors:

Hyun Jong Shin - Ridgefield CT
Peter Hong Xiao - Mohegan Lake NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H03F 345

US Classification:

330253

Abstract:

A self-biased, fully differential, complementary receiver apparatus and method is presented. The receiver accepts differential inputs that can vary over the full rail-to-rail common mode voltage range. It produces double-ended complementary outputs swinging rail-to-rail useful in signal level conversion and comparator applications. The receiver includes a dual, fully complementary and mirror-symmetrical arrangement of a differential input stage, a biasing stage and an output stage. A self biasing voltage is generated with a balanced voltage divider coupled between the outputs of the biasing stages. This frees both biasing outputs for use as analogous but complementary receiver outputs while providing the receiver with all the advantages of self bias. For small signal differential inputs, the input and biasing stages operate in their linear region useful for amplifier applications. Whereas the circuit is most advantageously implemented using both p-type and n-type CMOS transistors, it can similarly be advantageously implemented with bipolar transistors.

US Patent:

51626683, Nov 10, 1992

Filed:

May 4, 1992

Appl. No.:

7/880286

Inventors:

Chih-Liang Chen - Briarcliff NY
Sang H. Dhong - Mahopac NY
Hyun J. Shin - Mahopac NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H03K 301

US Classification:

3072968

Abstract:

Novel boosted power supplies are disclosed for an internal, on-chip regulator circuit which includes a differential amplifier coupler to a series regulating element operating as a source follower, and in which a voltage pump circuit is provided to generate a boosted power supply for the differential amplifier. The voltage pump preferably includes a ring oscillator for supplying pulses for the voltage pump. The new on-chip voltage regulators are designed for n-well CMOS technology circuits, and can be applied to BiCMOS as well as n-well CMOS circuits. The new circuits utilize voltage boosting techniques to increase the potential at the gate of the series regulating element operating as a source follower, and also improve the power supply rejection. Furthermore, these circuits preferably use clamping diodes to limit negative voltage swings at the gate of the series regulating element and to improve the settling time of the voltage regulator circuit. The on-chip regulator circuits are well suited for small dropout voltage regulator applications, have less external power supply sensitivity, use a clamping diode to improve the settling time of the feedback loop, and can utilize either static or dynamically controlled pump circuitry.

Address:

4050 Brushy Crk Way, Suwanee, GA 30024

Phone:

678 862-9898

VIN:

1G1RD6E46CU104069

Make:

CHEVROLET

Model:

VOLT

Year:

2012

Address:

12456B Liberty Brg Rd, Fairfax, VA 22033

VIN:

JTEBU14R58K027167

Make:

TOYOTA

Model:

4RUNNER

Year:

2008

Address:

5243 Pumphrey Dr, Fairfax, VA 22032

VIN:

1HGCM66857A056457

Make:

HOND

Model:

ACCO

Year:

2007