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  • Medical Device Link .
    than the voltage to be switched. Normally, a transformer is used for level shifting between the high-voltage controller and the switch. Figure 2 shows a principal block diagram of the components required for one half bridge. Figure 1. Principle diagram of a defibrillator system. Notice the two bridges
  • PIC Microcontroller Horn Driver (.pdf)
    as the horn driver. is required. The PWM output driven by the ECCP module in Half-. HORN THEORY. Bridge mode, with both the P1A and P1B outputs. active-high, will step through the 125 through. Horns generally use a Piezo element, that when driven. 166 clocks per cycle periods at a period rate
  • Digitally Addressable DALI Dimming Ballast App.
    FAULT, and DC Bus/AC. shown in Figure 3. line FAULT). The IR2159 contains a voltage-controlled. The EMI filter blocks ballast generated noise. The. oscillator (VCO) which controls the half-bridge fre-. power factor correction is used for sinusoidal input cur-. quency while maintaining a 50% duty cycle