Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Switch gear cell and converter circuit for switching a multiplicity of voltage levels with a switchgear cell such as this










Image Number 7 for United States Patent #7817451.

A switchgear cell having a group of connection is disclosed, with the group of connection having a first and a second controllable bidirectional power semiconductor switch and a capacitor. In order to reduce the stored electrical energy and to save space, the group of connection can have a third, fourth, fifth and sixth controllable bidirectional power semiconductor switch and the first controllable bidirectional power semiconductor switch can be connected back-to-back in series with the second controllable bidirectional power semiconductor switch, the third controllable bidirectional power semiconductor switch can be connected back-to-back in series with the fourth controllable bidirectional power semiconductor switch, the capacitor can be connected to the connection point of the first controllable bidirectional power semiconductor switch to the second controllable bidirectional power semiconductor switch and to the connection point of the third controllable bidirectional power semiconductor switch) to the fourth controllable bidirectional power semiconductor switch, the fifth controllable bidirectional power semiconductor switch can be connected to the connection point of the first controllable bidirectional power semiconductor switch to the second controllable bidirectional power semiconductor switch, and to the fourth controllable bidirectional power semiconductor switch, and the sixth controllable bidirectional power semiconductor switch can be connected to the connection point of the third controllable bidirectional power semiconductor switch to the fourth controllable bidirectional power semiconductor switch and to the second controllable bidirectional power semiconductor switch.








 
 
  Recently Added Patents
Cooler
Highly detectable pilot structure
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
Converter and measuring apparatus
Semiconductor memory device and manufacturing method thereof
Methods for processing 2Nx2N block with N being positive integer greater than four under intra-prediction mode and related processing circuits thereof
Monitoring activity of a user in locomotion on foot
  Randomly Featured Patents
Position synchronization of machines
Ultra-high specificity fluorescent labeling
System and method to package security credentials for later use
Stirling engine assembly
Three ball internally illuminated wand tip
Design to prevent tungsten oxidation at contact alignment in FeRAM
Knock type applicator
Method of hydroxylation
Process for coating low energy surfaces
Apparatus and method for dispensing liquid crystal material