The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 26, 2017

Filed:

Jun. 23, 2015
Applicants:

Stmicroelectronics (Shenzhen) R&d Co. Ltd, Shenzhen, CN;

Stmicroelectronics (China) Investment Co. Ltd, Shanghai, CN;

Inventors:

Henry Ge, Shenzhen, CN;

Welsin Wang, Shanghai, CN;

Xing Zhang, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/40 (2014.01); H02M 7/06 (2006.01); G01R 11/40 (2006.01); G01R 11/42 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 7/06 (2013.01); H02M 7/068 (2013.01); G01R 11/40 (2013.01); G01R 11/42 (2013.01); H02M 2001/0064 (2013.01);
Abstract

Congruent power and timing signals in a single electronic device. In an embodiment, a circuit may include just one isolation transformer operable to generate a power signal and a timing signal. On the secondary side, two branches may extract both a power signal and a clock signal for use in the circuit on the isolated secondary side. The first branch may be coupled to the transformer and operable to manipulate the signal into a power signal, such as a 5V DC signal. Likewise, the second circuit branch is operable to manipulate the signal into a clock signal, such as a 5 V signal with a frequency of 1 MHz. By extracting both a power supply signal and a clock signal from the same isolation transformer on the secondary side, valuable space may be saved on an integrated circuit device with only having a single winding for a single isolation transformer.


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