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Tunc Fatma L Doluca

from Saratoga, CA
Age ~66

Tunc Doluca Phones & Addresses

  • 15043 Gypsy Hill Rd, Saratoga, CA 95070 (408) 395-3797 (408) 688-4312
  • 14636 Springer Ave, Saratoga, CA 95070
  • Los Gatos, CA
  • Aptos, CA
  • San Jose, CA
  • Santa Clara, CA
  • 15043 Gypsy Hill Rd, Saratoga, CA 95070

Work

Company: Western digital Aug 2018 Position: Director

Education

Degree: Master of Science, Masters School / High School: Uc Santa Barbara 1979 to 1981 Specialities: Electronics Engineering

Languages

English • Turkish

Emails

Industries

Semiconductors

Resumes

Resumes

Tunc Doluca Photo 1

Director

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Location:
15043 Gypsy Hill Rd, Saratoga, CA 95070
Industry:
Semiconductors
Work:
Western Digital
Director

Uc Santa Barbara
Member Board of Trustees

Semiconductor Industry Association
Director

Maxim Integrated
President and Chief Executive Officer

Maxim Integrated 1984 - 2006
Design Engineering, Engineering Management and Leadership Roles
Education:
Uc Santa Barbara 1979 - 1981
Master of Science, Masters, Electronics Engineering
Iowa State University 1976 - 1979
Bachelors, Bachelor of Science, Electronics Engineering
Orta Doğu Teknik Üniversitesi / Middle East Technical University 1974 - 1976
Ted Ankara Koleji 1966 - 1974
Languages:
English
Turkish

Business Records

Name / Title
Company / Classification
Phones & Addresses
Tunc Doluca
President/ceo
MAXIM INTEGRATED PRODUCTS, INC
160 Rio Robles, San Jose, CA 95134
2338 W Royal Palm Rd STE J, Phoenix, AZ 85021
Tunc Doluca
President
Mobilygen Corporation
Nonclassifiable Establishments · Whol Electronic Parts/Equipment
2900 Lakeside Dr, Santa Clara, CA 95054
160 Rio Robles, San Jose, CA 95134
120 San Gabriel Dr, Sunnyvale, CA 94086
(408) 869-4000

Publications

Us Patents

Method And Apparatus For Increasing Switching Regulator Light Load Efficiency

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US Patent:
55281320, Jun 18, 1996
Filed:
Feb 25, 1994
Appl. No.:
8/201908
Inventors:
Tunc Doluca - Saratoga CA
Assignee:
Maxim Integrated Products - Sunnyvale CA
International Classification:
G05F 144
US Classification:
323284
Abstract:
A method and apparatus for increasing the light load efficiency of a DC-DC converter by reducing the quiescent power of the control section. In accordance with the invention, the DC-DC conversion is first started using a first regulator circuit to power the converter controller. When the converter output reaches an adequate level, the converter controller power input is switched to the output of the converter. At the same time, the first regulator circuit is turned off, whereby the converter controller continues to operate from the converter output, which has a voltage substantially less than the power supply input voltage. Because controllers all draw about the same current, the lower input voltage to the controller lowers the power consumption thereof, improving the efficiency of the regulator, particularly when subjected to light loads. Various embodiments are disclosed.

Flash Analog To Digital Converter

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US Patent:
46397159, Jan 27, 1987
Filed:
Feb 13, 1984
Appl. No.:
6/579276
Inventors:
Tunc Doluca - Santa Clara CA
Assignee:
Intersil, Inc. - Cupertino CA
International Classification:
H03K 1302
US Classification:
340347AD
Abstract:
An improved analog to digital converter is provided in which high and low order bytes of the digital output can be sequentially generated by a single flash converter circuit. Upon the generation of the high order byte, a high byte equivalent voltage is subtracted from the analog input voltage and the residual is multiplied by a predetermined factor. The resultant product signal is converted by the same flash converter circuit to the low order byte. In addition, the low scale and full scale of the converter inputs may be programmed to have the same polarity as, or the opposite polarity of, the polarities of the reference voltages.

Method And Apparatus For Multiple Output Regulation In A Step-Down Switching Regulator

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US Patent:
55325777, Jul 2, 1996
Filed:
Apr 1, 1994
Appl. No.:
8/222461
Inventors:
Tunc Doluca - Saratoga CA
Assignee:
Maxim Integrated Products, Inc. - Sunnyvale CA
International Classification:
G05F 156
US Classification:
323282
Abstract:
A step-down switching regulator of the present invention includes (1) a magnetic storage device having at least one primary output and one secondary output, (2) a current sensing device for detecting current through a primary winding of the magnetic storage device, (3) a first switch, (4) a second switch, (5) a first comparator for detecting whether the current through the primary winding is greater than a limit value, (6) a second comparator for detecting loss of regulation in the secondary output, and (7) a switch logic circuitry for allowing only one of the first switch or the second switch to turn on at a time. When the primary output is out of regulation, the first switch turns on to deliver power to the primary output. When the secondary output is out of regulation, one of two methods can be used to supply power to the secondary output. A first method turns on the first switch for a short time, and then the second switch turns on to deliver power to the secondary output.

Frequency Response Amplifier

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US Patent:
46671641, May 19, 1987
Filed:
Nov 7, 1984
Appl. No.:
6/669119
Inventors:
Tunc Doluca - Santa Clara CA
Assignee:
Intersil, Inc. - Cupertino CA
International Classification:
H03F 345
H03F 316
US Classification:
330253
Abstract:
An operational amplifier or comparator is provided in which internal parasitic capacitances are buffered to increase the gain bandwidth product of the amplifier.

Method And Apparatus For Multiple Output Regulation In A Step-Down Switching Regulator

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US Patent:
56776195, Oct 14, 1997
Filed:
Jul 1, 1996
Appl. No.:
8/673126
Inventors:
Tunc Doluca - Saratoga CA
Assignee:
Maxim Integrated Products, Inc. - Sunnyvale CA
International Classification:
G05F 156
US Classification:
323282
Abstract:
A step-down switching regulator of the present invention includes (1) a magnetic storage device having at least one primary output and one secondary output, (2) a current sensing device for detecting current through a primary winding of the magnetic storage device, (3) a first switch, (4) a second switch, (5) a first comparator for detecting whether the current through the primary winding is greater than a limit value, (6) a second comparator for detecting loss of regulation in the secondary output, and (7) a switch logic circuitry for allowing only one of the first switch or the second switch to turn on at a time. When the primary output is out of regulation, the first switch turns on to deliver power to the primary output. When the secondary output is out of regulation, one of two methods can be used to supply power to the secondary output. A first method turns on the first switch for a short time, and then the second switch turns on to deliver power to the secondary output.

Analog To Digital Converter With Parallel And Successive Approximation Stages

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US Patent:
46411291, Feb 3, 1987
Filed:
Feb 9, 1984
Appl. No.:
6/578535
Inventors:
Tunc Doluca - Santa Clara CA
Ziya G. Boyacigiller - Hayward CA
Assignee:
Intersil, Inc. - Cupertino CA
International Classification:
H03M 100
US Classification:
340347AD
Abstract:
An improved analog to digital converter in which an approximate digital representation is provided by a parallel analog to digital converter and the conversion is completed by a successive approximation analog to digital converter.

Switching Power Supplies With Linear Precharge, Pseudo-Buck And Pseudo-Boost Modes

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US Patent:
59989777, Dec 7, 1999
Filed:
May 27, 1998
Appl. No.:
9/085312
Inventors:
Tunc Doluca - Saratoga CA
Assignee:
Maxim Integrated Products, Inc. - Sunnyvale CA
International Classification:
G05F 140
G05F 1569
H02H 710
US Classification:
323272
Abstract:
The present invention teaches a variety of startup modes for operating a boost type switching power supply. A linear charging mode couples the input voltage directly to the output voltage, thereby precharging the output capacitor of the switching power supply. The linear mode serves to reduce inrush battery current and limit the stress voltage on the power switching devices. A pseudo-buck mode, preferably entered into after the linear mode has precharged the output capacitor, operates the boost type switching power supply in a manner providing power to the output essentially as a buck type switching power supply would. This results in continuous charging of the output capacitor, thereby reducing startup time and increasing power efficiency. The pseudo-buck mode also enables step-down voltage generation with boost type circuitry. A pseudo-boost mode facilitates a smooth transition between the pseudo-buck and traditional boost modes.

Buried Zener Diode

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US Patent:
50271652, Jun 25, 1991
Filed:
May 22, 1990
Appl. No.:
7/526598
Inventors:
Tunc Doluca - San Jose CA
Assignee:
Maxim Integrated Products - Sunnyvale CA
International Classification:
H01L 2990
H01L 2700
G05F 500
US Classification:
357 13
Abstract:
An improved zener diode formed in a semiconductor wafer having a primary surface, the zener diode having a PN junction buried beneath the surface. The diode includes a pair of spaced contacts on the surface, the first located on one region and the second located on another laterally spaced region of the surface, to establish a current path through the diode. A replica device is formed on the same wafer generally replicating the physical dimensions of the zener diode. The replica device has a pair of spaced surface contacts located on spaced regions of the surface with a replica current path between them having substantially the same resistance as the on-resistance of the current path of the diode, the replica current path replicating the current path except that it has no PN junction. The zener and the replica device are coupled together in a manner so that the voltage across the replica device will be subtracted from the voltage across the diode to generate a difference voltage which will be substantially independent of changes in series resistance of the current path of the zener diode due to variations in wafer manufacturing process or in ambient temperature when the diode is being used.
Tunc Fatma L Doluca from Saratoga, CA, age ~66 Get Report