What Is the Phase-Shifted Full-Bridge ZVS Shim Inductor Sizing Calculator?
The phase-shifted full bridge (PSFB) topology achieves high efficiency through Zero-Voltage Switching (ZVS).
While the leading leg switches easily with reflected load current, the lagging leg relies solely on resonant inductive energy (0.5 L·Ip²) to discharge MOSFET Coss.
How Does the Phase-Shifted Full-Bridge ZVS Shim Inductor Sizing Calculator Work?
The calculation evaluates user-provided measurements using recognized domain equations, converts between measurement units, and adjusts for real-world efficiency factors.
Phase-Shifted Full-Bridge ZVS Shim Inductor Sizing Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
Resonant energy conservation for complete lagging leg node discharge.
How to Use the Phase-Shifted Full-Bridge ZVS Shim Inductor Sizing Calculator
- Enter your primary measurements in the input fields above.
- Select your preferred units (e.g. metric or imperial) if applicable.
- Review or adjust operational assumptions such as field efficiency.
- Click Calculate to instantly generate the full results breakdown and visual chart.
- Use the Reset button at any time to clear the form and test a new scenario.
Step-by-Step Example Calculation
3kW Server Power Supply 400V Link
Input Values:
Understanding Your Result
Your calculated result represents the realistic operational capacity or baseline output under the specified conditions. Comparing theoretical and effective outputs reveals the direct impact of turns, overlap, and practical downtime.
Factors That Affect the Result
Field terrain, operator experience, equipment maintenance, overlap margin, and weather conditions can significantly influence real-world output.
When Should You Use This Calculator?
Use this calculator whenever you need quick, verified estimates for job planning, budgeting, equipment sizing, or project timelines.
Assumptions & Limitations
- Total resonant capacitance equals 2·Coss + Cstray across the switching node.
Frequently Asked Questions
Calculation Accuracy & Reference Note
This calculator implements verified, deterministic mathematical equations based on published standards. Results should be treated as professional engineering estimates; always verify critical operations with local equipment manuals and site inspections.