TIDUBE1D
January 2016 – August 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Highlighted Products and Key Advantages
2.2.1
UCC28180 – PFC Controller
2.2.2
UCC27524 – Dual Low-Side Gate Driver
2.2.3
UCC28881 – 700-V Off-Line Converter
2.3
System Design Theory
2.3.1
Selecting Switching Frequency
2.3.2
Calculating Output Capacitance
2.3.3
Calculating PFC Choke Inductor
2.3.4
Selecting Switching Element
2.3.5
Boost Follower Control Circuit
2.3.6
Bias Power
2.3.7
On-Off Switch
2.3.8
Thermal Design
3
Hardware, Testing Requirements, and Test Results
3.1
Required Hardware
3.1.1
Test Conditions
3.1.2
Recommended Equipment
3.1.3
Procedure
3.2
Test Results
3.2.1
Performance Data
3.2.1.1
Efficiency and iTHD
3.2.1.2
Standby Power and Output Voltage
3.2.2
Performance Curves
3.2.2.1
Efficiency Curve
3.2.2.2
Voltage Follower Performance
3.2.3
Functional Waveforms
3.2.3.1
Power On Sequence
3.2.3.2
Inrush Current Protection
3.2.3.3
Switching Node
3.2.3.4
Waveform Under 3.5kW, 230VAC
3.2.4
Thermal Measurements
4
Design Files
4.1
Schematics
4.2
Bill of Materials
5
Documentation Support
6
Trademarks
7
About the Author
8
Revision History
Applications
Air Conditioners
HVAC
Industrial AC/DC > 480 W
Single-Phase UPS
Other Major Appliances