(19)

(11)

EP 2 965 420 A2

(12)

(88) Date of publication A3: 17.09.2015 (43) Date of publication: 13.01.2016 Bulletin 2016/02 (21) Application number: 14711561.2 (22) Date of filing: 10.03.2014

(51) International Patent Classification (IPC):  H02P 27/16(2006.01) (86) International application number: PCT/GB2014/050712 (87) International publication number: WO 2014/135903 (12.09.2014 Gazette 2014/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 08.03.2013 GB 201304269 (71) Applicant: Dyson Technology Limited Malmesbury, Wiltshire SN16 0RP (GB)	(72) Inventors: GREETHAM, Stephen Malmesbury Wiltshire SN16 0RP (GB) CLOTHIER, Andrew Malmesbury Wiltshire SN16 0RP (GB) (74) Representative: Lobban, Colin et al Dyson Technology Limited Intellectual Property Department Tetbury Hill Malmesbury, Wiltshire SN16 0RP Malmesbury, Wiltshire SN16 0RP (GB)