US Patent No: 7,915,947

Number of patents in Portfolio can not be more than 2000

PTAT sensor and temperature sensing method thereof

ALSO PUBLISHED AS: 20100219879

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Abstract

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A proportional to absolute temperature (PTAT) sensor is capable of reducing a sensing error resulted from a mismatch between circuit components. The PTAT sensor includes a control unit, a sensing unit and a calculation unit. The control unit generates a control signal. The sensing unit, comprising at least a pair of circuit components having a matching relationship, senses an absolute temperature under the first connection configuration and the second connection configuration respectively to generate a first voltage value and a second voltage value, wherein the first connection configuration and the second connection configuration are decided by interchanging the circuit connections of the pair of circuit components according to the control signal. And the calculation unit, coupled to the sensing unit, calculates a PTAT voltage value according to the first voltage value and the second voltage values.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MSTAR SEMICONDUCTOR, INC.HSINCHU HSIEN456

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hsiao, Shuo-Yuan Milpitas, CA 15 126
LIU, Ming-Chung - 28 28

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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6,991,369 Method and circuit for the provision of accurately scaled currents 5 2003
 
AUSTRIAMICROSYSTEMS AG (1)
2010/0013,544 Temperature-Dependent Signal Provision 3 2006
 
FREESCALE SEMICONDUCTOR, INC. (1)
5,614,816 Low voltage reference circuit and method of operation 16 1995
 
INTEL CORPORATION (1)
7,356,426 Calibration of thermal sensors for semiconductor dies 4 2004
 
INTERSIL AMERICAS LLC (1)
7,880,459 Circuits and methods to produce a VPTAT and/or a bandgap voltage 11 2008
 
MOTOROLA, INC. (1)
4,267,468 Temperature sensing circuit 7 1979
 
STANDARD MICROSYSTEMS CORPORATION (1)
7,281,846 Integrated resistance cancellation in temperature measurement systems 48 2004
 
STMICROELECTRONICS S.A. (1)
6,997,606 Threshold temperature sensor comprising room temperature test means 5 2002

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ISSC TECHNOLOGIES CORP. (1)
8,723,595 Voltage generator 0 2013

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