Yung I Lin from 2357 Dunwoody Hollow Dr, Atlanta, GA 30360, age 71, Phone: (770)5128789

Medicine Doctors

Yung Tai Lin

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Specialties:

Internal Medicine

Work:

Susquehanna Hospitalists
700 High St, Williamsport, PA 17701
(570)3212850 (phone), (570)3212851 (fax)

Education:

Medical School
Natl Taiwan Univ Coll of Med, Taipei, Taiwan (385 02 Prior 1/71)
Graduated: 2007

Conditions:

Hypertension (HTN)

Languages:

English

Description:

Dr. Lin graduated from the Natl Taiwan Univ Coll of Med, Taipei, Taiwan (385 02 Prior 1/71) in 2007. He works in Williamsport, PA and specializes in Internal Medicine. Dr. Lin is affiliated with Williamsport Regional Medical Center.

Us Patents

Dc/Ac Cold Cathode Fluorescent Lamp Inverter
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US Patent:

7881084, Feb 1, 2011
Filed:

Jun 10, 2008
Appl. No.:

12/136597
Inventors:

Yung Lin Lin - Palo Alto CA, US
Assignee:

O2Micro International Limited - Grand Cayman
International Classification:

H02M 3/24
US Classification:

363 98, 363 25, 315307
Abstract:

A DC/AC cold cathode fluorescent lamp (CCFL) inverter circuit includes a transformer with a primary winding and a secondary winding for providing increased voltage to a CCFL, a first and second MOSFET switches for selectively allowing direct current of a first polarity and a second polarity to flow through the transformer respectively. The primary and secondary windings of the transformer are electrically coupled to ground. A capacitor divider is electrically coupled to the CCFL for providing a first voltage signal representing a voltage across the CCFL. A first feedback signal line receives the first voltage signal. A timer circuit is coupled to the first feedback signal line for providing a time-out sequence of a predetermined duration when the first voltage signal exceeds a predetermined threshold. A protection circuit shuts down the first switch and the second switch when the first voltage signal exceeds the predetermined threshold after the predetermined duration.

Circuits And Methods For Driving Light Sources
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US Patent:

8040071, Oct 18, 2011
Filed:

Dec 14, 2010
Appl. No.:

12/968035
Inventors:

Yung Lin Lin - Palo Alto CA, US
Sterling Du - Palo Alto CA, US
Assignee:

O2Micro, Inc. - Santa Clara CA
International Classification:

H05B 37/00
US Classification:

315224, 315192, 315307, 315308
Abstract:

In one embodiment, a driving circuit includes an AC/DC converter which converts an AC voltage to a DC voltage and a DC/DC linear regulator which regulates a current through, e. g. , an LED light source, according to a first current reference if a monitoring signal indicating the DC voltage is within a predetermined range, and regulates the current according to a second current reference less than the first current reference if the monitoring signal is beyond the predetermined range. In another embodiment, a controller controlling power to an LED light source turns on a first plurality of LEDs and turns off a second plurality of LEDs if a monitoring signal indicative of a DC voltage received by the LED light source is within a predetermined range, and turns on both first and second plurality of LEDs if the monitoring signal is beyond the predetermined range.

Circuits And Methods For Controlling Dimming Of A Light Source
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US Patent:

8111017, Feb 7, 2012
Filed:

Jul 12, 2010
Appl. No.:

12/834672
Inventors:

Yung Lin Lin - Palo Alto CA, US
Ching-Chuan Kuo - Taipei, TW
Assignee:

O2Micro, Inc - Santa Clara CA
International Classification:

G05F 1/00
US Classification:

315307, 315209 R, 315224
Abstract:

A controller for controlling dimming of a light source includes a detection pin, an input signal pin, and a monitoring pin. The detection pin is operable for monitoring a rectified voltage and for detecting whether the rectified voltage comes from a TRIAC dimmer or an on/off switch dimmer. The input signal pin is operable for receiving an input signal indicative of the rectified voltage and the controller controls dimming of the light source according to the input signal if the rectified voltage comes from a TRIAC dimmer. The monitoring pin is operable for receiving a monitoring signal indicating an operation of the on/off switch dimmer and the controller controls dimming of the light source according to the monitoring signal if the rectified voltage comes from an on/off switch dimmer.

Portable Lighting Device And Method Thereof
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US Patent:

8120263, Feb 21, 2012
Filed:

Jun 29, 2009
Appl. No.:

12/493420
Inventors:

Yung Lin Lin - Palo Alto CA, US
ShengTai Lee - Taipei, TW
Assignee:

O2Micro, Inc - Santa Clara CA
International Classification:

H05B 37/02
H05B 39/02
H05B 39/04
H05B 41/36
US Classification:

315209R, 315200 A, 315308, 362157
Abstract:

A portable lighting device includes a power source, a controller, and a load. The controller comprises a power input terminal which is electrically connected to the power source via a switch. The load is electrically connected to a power output terminal of the controller and is capable of providing a feedback signal. The controller regulates the power being provided to the load according to the feedback signal and a conduction status of the switch.

Differential Driving Circuit For Powering A Light Source
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US Patent:

8148910, Apr 3, 2012
Filed:

Oct 29, 2010
Appl. No.:

12/915807
Inventors:

Yung Lin Lin - Palo Alto CA, US
Ching-Chuan Kuo - Taipei, TW
Assignee:

02 Micro, Inc - Santa Clara CA
International Classification:

H05B 41/16
US Classification:

315247, 315185 S, 315291, 315224, 315209 R
Abstract:

A differential driving circuit for powering a light source is disclosed. The differential driving circuit includes a first set of switches and a second set of switches. A first current from a power source flows through the first set of switches to charge a first energy storage element when the first set of switches are turned on. A second current from the first energy storage element flows through the second set of switches to power the light source when the second set of switches are turned on. The differential driving circuit further includes a second energy storage element coupled to the light source in parallel and for providing a differential voltage to the light source.

Circuits And Methods For Driving Light Sources
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US Patent:

8148919, Apr 3, 2012
Filed:

Oct 17, 2011
Appl. No.:

13/274663
Inventors:

Da Liu - Milpitas CA, US
Yung Lin Lin - Palo Alto CA, US
Assignee:

O2Micro, Inc - Santa Clara CA
International Classification:

H05B 37/02
US Classification:

315307, 315219, 315279, 315308
Abstract:

A driving circuit for powering a light-emitting diode (LED) light source includes a converter circuit, an energy storage element and a switch element. The converter circuit provides a first output voltage on a first power line to provide power to the LED light source and provides a second output voltage on a second power line that is less than the first output voltage. The energy storage element is charged and discharged to regulate a current through the LED light source. The switch element operates in a first state during which the energy storage element is charged and operates in a second state during which the energy storage element is discharged. The converter circuit provides the second output voltage to maintain an operating voltage across the switch element less than the first output voltage during both the first state and the second state.

Circuit For Vehicle Lighting
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US Patent:

8169147, May 1, 2012
Filed:

Sep 17, 2009
Appl. No.:

12/561483
Inventors:

Cheng-Wei Hsu - Taipei, TW
Da Liu - Milpitas CA, US
ShengTai Lee - Taipei, TW
Yung Lin Lin - Palo Alto CA, US
Assignee:

O2Micro, Inc. - Santa Clara CA
International Classification:

B60Q 1/00
G01R 31/00
US Classification:

315 77, 315 82, 324414
Abstract:

A circuit for driving a vehicle lamp includes a current path coupled between a power line and ground, and a monitoring unit coupled to the power line. The current path includes a dummy load. The monitoring unit can monitor a testing signal applied to the power line. The testing signal can test whether the vehicle lamp operates properly. The monitoring unit can conduct the current path to enable a current to flow through the dummy load to ground to decrease a total resistance of the circuit if the testing signal is detected.

Systems And Methods For Driving A Light Source
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US Patent:

8228004, Jul 24, 2012
Filed:

Sep 17, 2009
Appl. No.:

12/561888
Inventors:

Ching-Chuan Kuo - Taipei, TW
Yung Lin Lin - Palo Alto CA, US
Assignee:

O2 Micro, Inc - Santa Clara CA
International Classification:

G05F 1/00
US Classification:

315307, 315209 R, 315224
Abstract:

A circuit for driving a light source includes a voltage converter, a switch and a controller. The voltage converter converts an AC input voltage signal to a first rectified AC voltage signal. The voltage converter further generates an average signal proportional to an average voltage level of the first rectified AC voltage signal. The switch is coupled to the light source in series. The controller coupled to the voltage converter and the switch compares the first rectified AC voltage signal with the average signal to generate a pulse signal. The controller further generates a dimming control signal based on the pulse signal to control the switch thereby controlling dimming of the light source.