NANJING GREENCHIP SEMICONDUCTOR CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1092
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 694
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 473
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 2118
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 2109
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186
 
  
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 162

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9209696 Switching mode power supply capable of achieving soft transition for valley switching, or performing valley lockingJul 16, 14Dec 08, 15[H02M]
9190918 Controllers and related control methods for generating signals representing an output current to a load in a switched mode power supplyDec 02, 13Nov 17, 15[H02J, H02M, G05F]
9148013 Control methods for over voltage protection and relevant power controllersMar 11, 14Sep 29, 15[H02M, H05B, H02H]
9112418 Controller for a switched mode power supply having an integrated circuit with multifunction pinDec 02, 13Aug 18, 15[H03K, H02M]
8988905 PWM controller detecting temperature and AC line via a single pin and power converter using sameNov 12, 12Mar 24, 15[H02M]
8964417 Power controllers and control methods suitable for operating a switched mode power supply in quasi-resonant modeDec 02, 13Feb 24, 15[H02M]
8659271 Fixed-on-time controller utilizing an adaptive saw signal for discontinuous mode PFC power conversionMar 23, 11Feb 25, 14[G05F]
8450940 Gas-discharge lamp controller utilizing a novel preheating phase control mechanismMay 20, 10May 28, 13[H05B]
8314515 System corrected programmable integrated circuitJul 01, 09Nov 20, 12[G05F]
8305047 Safety capacitor discharging method and apparatus for AC-to-DC convertersSep 24, 09Nov 06, 12[H02J]

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Expired/Abandoned/Withdrawn Patents

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