Electronic Gazette

Electronic Gazette List of International Applications Filed as National Phase Entry in IPOPublication Code: VOL. 11 NO. 31
Date Released:

[21]
International Application Number

:

PCT/GB2003/002785

[22]
International Filing Date

:

6/27/2003

[10]
International Publication Number

:

WO2004/004107

[43]
International Publication Date

:

1/8/2004

Domestic Application Number

:

12004502122

National Phase Entry Date

:

12/23/2004

[54]
Title

:

METHOD AND DEVICE FOR CONTROLLING VOLTAGE

[72]
Inventor(s):

:

ZIA SHLAIMOUN OF LONDON GREAT BRITAIN

[71]
Applicant
:
PRESIDIO POWER LIMITED , OF , UNITED KINGDOM

[74]
Agent

:

DEL ROSARIO & DEL ROSARIO

[30] Priority Data: : NONE

[51] International Class: : H02M 5/257

[57]

Abstract

A voltage control device for connection to an electrical supply having an alternating supply voltage, the device comprising: an input having an input voltage, said input for connection to the electrical supply; an aout put having an output voltage; means for comparing the output voltage with a predetermined voltage and generating a comparison signal; means to adjust the output voltage in response to the comparison signal, said means being connected to the input and output; whereby the output voltage is mainrained substantially at the predetermined voltage. A method of controlling an alternating voltage comprising the steps of: providing a device having an input which has an input voltage, said input being connected to an electrical supply having an alternating supply voltage; an output having an output voltage; an output having a output voltage; comparing the output voltage with a predetermined voltage to generate a comparison signal; adjusting the output voltage in response to the comparison signal whereby the output voltage is maintained substantially at the predetermined voltage. Preferably, the means to adjust the output voltage comprise means to delay the onset of the rise of output voltage within one half-cycle. More preferably, the means to delay comprises a thyristor module.

Note: If distorted or out of proportion, pls. click the image itself to view its enlarged format with the correct proportion

Representative Drawing(s):

Note: If distorted or out of proportion, pls. click the drawing itself to view its enlarged format with the correct proportion

[21]	International Application Number	:	PCT/GB2003/002785
[22]	International Filing Date	:	6/27/2003
[10]	International Publication Number	:	WO2004/004107
[43]	International Publication Date	:	1/8/2004
	Domestic Application Number	:	12004502122
	National Phase Entry Date	:	12/23/2004
[54]	Title	:	METHOD AND DEVICE FOR CONTROLLING VOLTAGE
[72]	Inventor(s):	:	ZIA SHLAIMOUN OF LONDON GREAT BRITAIN
[71]	Applicant	:	PRESIDIO POWER LIMITED , OF , UNITED KINGDOM
[74]	Agent	:	DEL ROSARIO & DEL ROSARIO