SHI, Junsheng

Chine

 
Quantité totale PI 3
Rang # Quantité totale PI 511 507
Note d'activité PI 0/5.0    0
Rang # Activité PI 1 688 332

Brevets

Marques

0 0
0 0
3 0
0
 
Dernier brevet 2007 - Electronic ballast startup outpu...
Premier brevet 2006 - A passive power factor correctio...

Derniers inventions, produits et services

2006 Invention Electronic ballast startup output current-limited circuit for high voltage sodium lamp. A electro...
Invention A passive power factor correction circuit. A passive powerfactor correction circuit includes diod...
Invention Electronic ballast. A electronic ballast, comprises: filter circuit, bridge commutating circuit, ...