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  • Switching Power Supply Design & Optimization, Second Edition > Comprehensive Front-End Design in AC-DC Power Conversion
    …we calculate the voltage ratings, capacitances, and RMS currents for capacitors in doubler circuits (at low line). .... We typically want the nominal duty cycle of a Forward converter that is set at 110 Vac / 220 Vac (about 311 Vdc rectified) to be somewhere between 0.26 to 0.29.
  • A Nonisolated Single-Phase UPS Topology With 110-V/220-V Input–Output Voltage Ratings
    The double half-bridge inverter operates as two synchronized independent half-bridges, as is well known in the literature, to produce a 220 - Vac output by the sum of two 110 -Vac outputs in phase. .... 2) Battery-Powered Mode: When the supervisory circuit detects ac-line failure, contactor Ss5 is turned off, and switch Ss6 turns on, transferring the input of the boost converter from the ac utility to the battery bank for boost dc/dc operation, which…
  • A Non-Isolated Single Phase On-Line UPS with Universal Input Output Voltage
    The double half bridge inverter operates as two independently half bridges, as well known and used in literature, synchronized to obtain 220Vac output by the sum of two 110 Vac outputs in phase. .... 2) Battery powered mode operation: When the supervisory circuit detects ac line failure, switch Ss5 is turned off and Ss6 turns on, transferring the input of the boost converter from the ac utility to the battery bank for boost dc/dc operation, which…
  • A transformerless single phase on-line UPS with 110 V/220 V input output voltage
    In this system, the two specifications of input voltages fix the two outputs voltages, so the ratings of output voltages in the developed prototype are accordingly to the Brazilian utility voltage (normally 110Vac or 220 Vac). .... To achieve this, a double half bridge circuit [14] provides two outputs of 110Vac, each one with half of the total output power of the three level boost rectifier/ converter .
  • Design procedure for a compact lamp using high-intensity LEDs
    The circuit can also be designed to operate with 110 VAC or 220 VAC detecting automatically the input voltage if 28 LEDs were used. .... This number is determined by the output voltage of Buck converter which must be compatible with the minimum and maximum limits of the NCP1013’s duty cycle (0 to 72%).
  • A single stage flyback power supply unit for LED lighting applications
    The maximum efficiency is measured as 85.17% at the middle load condition in the case of 110Vac input and 85.95% at full-load condition in case of 220 Vac input respectively. .... Figure 13 shows a CV and CC mode feedback circuit applied to the prototype single stage flyback converter experimental set-up for LED lighting.
  • $300-$400 Electrical - Grainger Industrial Supply
    …In., Depth 10.20 In., Width 7.10 In., Standards CE, Includes (3) Outlets, 15A Circuit Breaker. .... Step Up/Step Down Voltage Converter , Converts 110 to 220VAC , 220 to 110VAC, VA Rating 3kVA, 50/60 Hz, 80...
  • Novel off-line zero-voltage-switching PWM AC/DC converter for direct conversion from AC line to 48 VDC bus with power factor correction
    The proposed A W C converter provides both of input power factor correction and direct conversion from 110 - 220VAC line to 48VDC bus with single power stage. .... A new simple auxiliary circuit provides zero-volt- age-switching(ZVS) condition to all semiconductor de- vices…
  • A single-switch AC-DC converter with power factor correction
    Due to its simplified power stage and control circuit , this converter presents a better efficiency, lower cost and higher reliability. .... The measured power factor and efficiency are 99% and 87% at low line (i.e., 110 VAC ) operation, and 95% and 81% at high line (i.e., 220 VAC) operation, respectively.
  • A new RF package suitable for aeronautical commercial and DSCS satellite applications
    This paper presents an electronics architecture and hardware that utilizes many new integrated circuits and design techniques … computer; remote control of crystal reference oscillator for aging and temperature compensation; integrated 2 or 5 watt solid-state power amplifiers (SSPA); optional integrated solid-state booster amplifiers to 40 watts; optional external … including low-noise block converter (LNB) and SSPA, weighs .... Several input power options ( 110 or 220 VAC ; +48, +12, or -24 VDC) facilitate operation on multiple platforms.