Power modules are power converters that can be ©™φ↕mounted directly on a printed circuit board. ItΩ↑÷ is generally classifi∏π∞€ed as AC-DC or DC-DC according to th≥♣λe conversion method. With&↓≥ the development of technology, power supply •¶πcapacity tends to be modularized and miniaturiz'​♥ed, so power supply modules appeλ≤ar. It has a high degree of integration, a♥×nd integrates the main circuit of thε€e switching power supply into the chi↓ p, which can realize br™π∏oadband modulation, iso¶"lation and various maintenance functions. As mo≠↔§↓re and more people have higher and ∏★≈higher requirements for power modules a →nd higher reliability requ×₹irements, the editor of Beijing Steady Ele★'≈ctronics will share with you how to γ♣÷₹design safe and reliable pow→×π≠er modules.

Four elements of high reliabilit​λ♦y power module planning:

1. Anti-surge maintenanc™₹≈e circuit planning

How to design the anti-surge protecπ₩≤<tion circuit, it may be possible to ad®£★∞just the position of t→↓he inductor TVS tube₽§β for different applications,δ≈ which can make the system better use and ✔¥♣↔correctly use the circuit, therΩΩ↑eby better improving ♠λthe EMC performance. Pay attention to the desi↔>βgn of the two-level anti-surge protectioπ∏≈∏n circuit, if used improperly, it wi£✘​↑ll be counterproductiε©β→ve.

2. Reduce the amount of planning

Correctly controlling components to  €specified values, reducing the number of componenλ→↑ts can delay degradation, i←♦mprove component reli>®‌Ωability and improve power suppl₽©y reliability.

3. Dual power module planning

The output of the bidirectional power supply modu€¶le should pay attention to load balancin✘≤g. When planning, pay attentio←≈n to the main and auxiliary circui★λ♠ts to adjust the output evenl↔↓y.

4. Component selectiβ♦on

The use of different components will result←™&  in different module functions. For exampl∏×÷♣e, ceramic or electroly©↓tic capacitors are generally used for capacit∞↓or selection, while tantalum capacitors h∏¶©♦ave long life, high temperatu£& ×re resistance, function well, but are ea®γδ"sy to break the circuit.