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  • Phase Control Using Thyristors (.pdf)
    Due to high-volume production techniques, thyristors are now priced so that almost any electrical product can benefit from electronic control. A look at the fundamentals of SCR and triac phase controls shows how this is possible. Phase control is the most common form of thyristor power control
  • AN1106, Power Factor Correction in Power Conversion Applications Using the dsPIC (R) DSC
    , IN POWER AND CONTROL SYSTEMSa rectifier with a capacitive filter is necessary. However, this results in discontinuous and short duration current To understand PF, it is important to know that power spikes. When this type of current is drawn from the has two components: mains supply, the resulting
  • Brushless DC Motor Control Using PIC18FXX31 MCUs
    A PICDEM TM MC demo board was used to develop, test and debug the motor control code. The PICDEM MC has a single-phase diode bridge rectifier, converting AC input to DC and a power capacitor bank that keeps a stable DC bus. A 3-phase IGBT-based inverter bridge is used to control the output voltage
  • Watlow SCR Power Controllers and Ohio Semitronics Watt Transducers
    , with many different industrial applications occurring, including the control of heaters, ovens, and furnaces that incorporate Watlow (R) power control equipment. When specifying a PC5 model to use with a Watlow DIN-A-MITE (R) SCR (Silicon Controlled Rectifier), there are questions to consider in order
  • Braking and Regenerative Energy with AC Drives
    someplace. In the case of an AC PWM drive, that someplace is back to the DC bus (The DC bus is that portion of the drive after the rectifier section where DC power is collected and stored for use by the inverter section).

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