TIDT327 may   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Input Voltage Range and Current Requirements
    2. 1.2 Required Equipment
  6. 2Testing and Results
    1. 2.1 Efficiency and Power Loss Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
    5. 2.5 EMI
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence

Description

This reference design is a 220-W, active clamp, flyback battery charger design with power factor correction (PFC) front end. The design takes a universal AC input (90 V to 264 V) and charges a battery with VOUT range of 6 V to 22 V. There is an external constant current (CC), constant voltage (CV) loop on the board to accomplish the battery charging. The charge current is limited to 6 A for VOUT ≤ 10 V. If VOUT is > 10 V, the charge current is 10 A.