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Machine translation
1. (WO1988006814) IMPROVEMENTS IN OR RELATING TO D.C. to A.C. INVERTERS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1988/006814    International Application No.:    PCT/GB1988/000140
Publication Date: 07.09.1988 International Filing Date: 29.02.1988
IPC:
H02J 7/02 (2006.01), H02J 9/00 (2006.01), H02M 7/48 (2007.01)
Applicants: TERISE LIMITED [GB/GB]; Unit 1, Block 2, Victoria Industrial Estate, Airdrie ML6 9BY (GB) (For All Designated States Except US).
GALBRAITH, Owen [GB/GB]; (GB) (For US Only).
CRAWLEY, Christopher [GB/GB]; (GB) (For US Only)
Inventors: GALBRAITH, Owen; (GB).
CRAWLEY, Christopher; (GB)
Agent: FITZPATRICKS; 4 West Regent Street, Glasgow G2 1RS (GB)
Priority Data:
8704762 28.02.1987 GB
Title (EN) IMPROVEMENTS IN OR RELATING TO D.C. to A.C. INVERTERS
(FR) PERFECTIONNEMENTS DANS LE DOMAINE DES ONDULEURS CC/CA
Abstract: front page image
(EN)A portable A.C. power supply comprises D.C. to A.C. inverter means, including a chopper circuit (18) and transformer (22), connected to D.C. storage cells (at V). The supply includes control means responsive to the current being drawn by the load (16) (such as a power tool) which de-activates the supply if the alternating current drawn by the load (16) falls below a predetermined level, e.g. if the tool is switched off, and re-activates the supply automatically when the tool is switched on again. The supply also allows the storage cells to be re-charged via the windings of the output transformer (22).
(FR)Une alimentation d'énergie portative comprend des moyens onduleurs CC/CA, incluant un circuit hacheur (18) et un transformateur (22), connectés à des éléments de stockage CC (en V). L'alimentation comprend des moyens de commande sensibles au courant absorbé par la charge (16) (tel un outil à moteur), qui désactivent l'alimentation si le courant alternatif absorbé par la charge (16) tombe sous un niveau prédéterminé, par exemple si l'outil est mis hors circuit, et réactivent automatiquement l'alimentation lorsque l'outil est à nouveau mis en circuit. L'alimentation permet également aux éléments de stockage d'être rechargées via les enroulements du transformateur de puissance utile (22).
Designated States: AU, US.
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE).
Publication Language: English (EN)
Filing Language: English (EN)