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  • The Role of Electrolytic Capacitors
    Turn the sawtooth wave after rectification into a smooth pulsating wave, which is close to DC. In the power circuit, the rectifier circuit turns the AC into a pulsating DC, and a larger capacity electrolytic capacitor is connected after the rectifier circuit. Using its charge and discharge
  • The Good Old Power Resistors
    of high-voltage power transformers could put you to sleep. If a current needed "tweaking" you looked at a 3-inch panel meter, and took control with a knob you could get your whole fist around!
  • Soft-Start Controller For Switching Power Supplies
    This technical brief describes a microcontroller based Soft-Start Controller circuit for a switching power supply. Start-up is a stressful time for the power driver section of a switching power supply. Because the output voltage is initially zero, the feedback error initially jumps to its maximum
  • Industrial Fiber Optic Products for Wind Turbine and Wind Farm Applications - White Paper (.pdf)
    , which are a limited and diminishing resource, wind energy is limitless and readily available. Conversion of wind energy into utility grade AC power requires power electronics, such as rectifiers and inverters. In a high power generation system, galvanic insulation becomes very important to ensure
  • AN1106, Power Factor Correction in Power Conversion Applications Using the dsPIC (R) DSC
    following the PFC are: AC source. The DC output obtained after rectification is * Easy implementation of sophisticated control subsequently used for further stages. algorithms Current pulses with high peak amplitude are drawn * Flexible software modifications to meet specific from a rectified voltage
  • The `Good Old` Power Days (.pdf)
    of high-voltage power transformers could put you to sleep. If a current needed "tweaking" you looked at a 3-inch panel meter, and took control with a knob you could get your whole fist around!. Power resistors were big wirewound guys. They had hollow cores and were covered with shiny brown enamel

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