2c1a mini small size pd fast charging power supply charger circuit

By optimizing the 2C1A mini-sized PD fast charging power bank circuit and integrating the protocol chip and synchronous rectification MOS circuit, the problems of high complexity and large size of multi-interface PD fast charging circuits have been solved. This has enabled the miniaturization of the charger and efficient multi-interface power distribution, improving portability and electrical safety.

CN224721597UActive Publication Date: 2026-09-04YUEYANG DONGSONG ELECTRONIC CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202522082498.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2026-09-04
Estimated Expiration
2035-09-28

AI Technical Summary

Technical Problem

Existing multi-interface PD fast chargers have high circuit complexity and large space occupation due to the additional voltage divider components and switching switches, which cannot meet the needs of portability and high performance.

Method used

The circuit adopts a 2C1A mini-sized PD fast charging power supply and charger. By integrating protocol chips U101 and U201, combined with TYPE-C1, TYPE-C2 and USB-A interfaces, the number of electronic components is reduced. The output control circuit realizes multi-interface power distribution and protocol compatibility. The circuit design is optimized by using a high-frequency transformer and synchronous rectification MOS circuit.

Benefits of technology

It achieves miniaturization and portability of the charger, improves the anti-interference capability of multi-interface communication and power safety, and meets the stable power supply requirements for simultaneous fast charging of multiple devices.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a 2C1A mini small size PD fast charging power supply charger circuit, and its internal circuit includes input and anti surge circuit, full -wave rectifier circuit, EMI filter electromagnetic anti -interference circuit, absorption loop and high frequency transformer conversion circuit, synchronous rectification MOS circuit and output control circuit that connect gradually, absorption loop and high frequency transformer conversion circuit include high frequency transformer TR1A, and the primary side of high frequency transformer TR1A is connected EMI filter electromagnetic anti -interference circuit, still has integrated MOSFET pipe driving device and PWM control IC circuit, and the secondary side is connected synchronous rectification MOS circuit, output control circuit still has 431 output voltage adjustment and photo -coupler feedback loop circuit, and output control circuit includes the protocol chip U101 of model IP2726, U201 and the synchronous rectification power switch U5 of model MK91736.
Need to check novelty before this filing date? Find Prior Art