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  • Using NEC Optocouplers as Gate Drivers in IGBT and Power MOSFET Applications
    PS9552 Equivalent Circuit. 0. 5. 10. 15. 20. high-speed optocouplers designed specifically for gate. A newly developed BiCMOS process enables the light-. Power Supply Voltage VCC – VEE (V). driving these IGBTs and Power MOSFETs. receiving IC to provide a large output current (IO = 2.5A. Table 1-1 NEC
  • High Speed Optocoupler Performance Comparison: NEC PS9552 vs. Avago HCPL-3120
    . They feature large. peak output current, fast switching speeds, undervoltage lockout protection with hysteresis, and high common. mode transient immunity. Applications for these devices include IGBT and power MOSFET gate drivers. As seen in the tables below, the performance of the two devices is virtually
  • The Power of Green: Mitsubishi 9900A Series High Efficiency True On-Line Double Conversion Uninterruptible Power Supply (UPS) (.pdf)
    /Three-Level) power. devices.). IGBT switching loss and filter size and weight. devices were compared: are therefore not new issues; however with the current need. for more compact, lightweight and higher efficiency on-line. Mitsubishi CM200DU-24F 1200V IGBT (2-Level). UPS Systems, it became apparent
  • Overview of NEC / CEL Optocoupler Products for Motor Control Applications (.pdf)
    . In some circumstances, the application or design goals. VCC. lead to the use of an integrated Intelligent Power Module. (IPM) with the IGBT transistors and built-in gate driver. stage assembled together. Many IPM do not require high. –VBus. input current; however may require input voltages up
  • Optocoupler Performance Comparison: NEC PS9552 vs. Avago HCPL-3120
    isolators that employ a GaAlAs LED on the input side and. a photo diode, a signal processing circuit, and a power output transistor on the output side. They feature large. peak output current, fast switching speeds, undervoltage lockout protection with hysteresis, and high common. mode transient
  • Brushless DC Motor Control Using PIC18FXX31 MCUs
    (QEI). of DC bus). The feedback interface circuit is powered. - QEA, QEB and Index interface. by +5VA, while +15VA supplies power to the IGBT. - High and low resolution position. drivers located inside the Integrated Power Module. measurement. (IPM). - Velocity Measurement mode using Timer5
  • Medical Device Link .
    A manufacturer has added a family of motor controls for use with its line of linear motors and stage products. These controls are part the manufacturer's Matched Performance drive package featuring brushless linear servomotors. The controls possess the high-current-loop, rate-loop
  • Offline UPS Reference Design Using the dsPIC DSC (.pdf)
    (steps up the DC battery voltage to a constant high-voltage DC) 2)Full-Bridge Inverter (converts DC voltage to a sinusoidal AC output) 3)Flyback Switch Mode Charger (current source and charges battery with constant current). Offline UPS Reference Design Using the dsPIC DSC AN1279. Offline