US 9,853,560 B2 · Congruent power and timing signals for device

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.

Claims17

Dependent claims

A metering method comprising:

operating a plurality of measurement circuits each coupled to an associated phase voltage sensor and a phase current sensor of a respective phase of a multiphase power system, each measurement circuit comprising
a transformer generating an isolated signal,
a first circuit branch coupled to the transformer and manipulating the isolated signal into a clamped power signal, and
a second circuit branch coupled to the transformer and manipulating the isolated signal into a clock signal.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/747,242Filed 23 Jun 2015 · division

Priority

CN 2010 1 062475230 Dec 2010

Published

US 2015/0326139 A112 Nov 2015

Granted

26 Dec 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H02M 7/06
By static converters: using discharge tubes without control electrode or semiconductor devices without control electrode
H02M 7/068
Using discharge tubes without control electrode or semiconductor devices without control electrode: mounted on a transformer
G01R 11/40
Induction meters, e.g. Ferraris meters: for polyphase operation
G01R 11/42
For polyphase operation: circuitry therefor

Congruent power and timing signals for device

Life of this patent

Congruent power and timing signals for device

Life of this patent

Abstract

Claims17