GaN Systems offers a reference design for a 65-W quasi-resonant charger targeting consumer electronics, such as smartphones and laptops. The design addresses the consumer demand for smaller, lighter, and faster chargers by leveraging the benefits of GaN technology, including high switching speed, low on-resistance, and zero reverse recovery.

The main components of the design circuit are GaN Systems’ GS-065-011-1-L transistor and NCP1342 quasi-resonant controller on the primary side and a 100-V SR Si MOSFET with NCP4306 SR controller on the secondary side for synchronous rectification…

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