Resources Contact Us Home
Dual bridge matrix converter

Image Number 7 for United States Patent #6995992.

A dual bridge matrix converter has a line-side converter with controllable switches that receives AC power and provides unidirectional power to high and low DC link lines, and a load-side converter which receives the power from the DC link lines and provides AC power to output lines. A clamp circuit is connected across the DC link lines and includes a series connected diode and a capacitor. Negative DC link current will be conducted through the clamp diode to charge the clamp capacitor to avoid voltage spikes on the DC link lines. A controllable switch may be connected in parallel with the clamp diode and is turned on when the voltage across the clamp capacitor is above a threshold that is greater than the normal peak-to-peak AC input voltage. The switch is turned off when the voltage across the clamp capacitor is lower than the threshold voltage.

  Recently Added Patents
Data feed management
Three-dimensional holographic display using active shutter
Synthetic bone grafts
Field device for determining or monitoring a physical or chemical process variable
Method and system for automatically identifying wireless signal quality of a region
System and method for reducing the risks involved in trading multiple spread trading strategies
Coating composition, and a process for producing the same
  Randomly Featured Patents
Hybrid change of state protocol for CANOpen networks
Semiconductor device including transistor with composite gate structure and transistor with single gate structure and method for manufacturing the same
Electrochromic or photoelectrochromic device
Spatial frequency multiplexed coherent optical processor for calculating generalized moments
Forming a dielectric layer by thermal decomposition of a metallo-organic material
Hydraulic tensioner with relief valve
Electrical connector
Stapling mechanism
Efficient arc lamp illuminator for projection system