金沙9159_www.js9159.com(欢迎您)

Kunxing 24W USB PD charger dismantling

Release time: 2017-08-17


Kunxing 24W USB PD charger dismantling


11.jpg

       Kun Xing fast charge adapter with popular USB TYPE-C interface, the overall shape simple, color stable.

12.jpg

      Two feet American standard plug, can not be folded.

13.jpg

       USB TYPE-C interface output, the following marked with detailed specifications. 5V / 3A, 9V / 2.67A, 12V / 2A, the maximum output power of 24W.

14.jpg


15.jpg

       Power on the edge of the shell are chamfered, looks very delicate.

41.jpg

42.jpg

      Power supply circuit positive and negative.

44.jpg

       Insurance circuit and EMI circuit part. The green original is ntc, suppressing the power surge.

44.jpg

       The power supply uses three main capacitors with a withstand voltage of 400V, two volumes of 15 microfarads and one for 10 microfarads.

45.jpg

       Main capacitor brand ACON.

46.jpg

       transformer.

47.jpg

       The output filter uses two solid capacitors from the Wan Yu parallel, capacitor single specification: 16V 680 microfarads. High and low pressure zone insulation separator with glue fixed.

48.jpg

       The blue capacitor is mainly used to filter out high frequency interference. The second half of the USB TYPE-C output daughter board is wrapped with an insulating tape.

49.jpg

      USB TYPE-C socket magnetic suction.

51.jpg

       High and low pressure zone using insulating plastic sheet to do isolation.

52.jpg

       PCB high current part of the alignment in order to reduce the line resistance are done tin deposited.

54.jpg

       The solder joints are full and shiny, and the length of the pins is the same.

54.jpg

       Four Schottky diodes consist of rectifier bridge heap

       Switch from Sisemi Shenzhen love semiconductor, model SiF7N65D, 650V / 7A.

56.jpg


       Screen printing for the 632115 PWM.

54.jpg

       Synchronous rectifier controller.

54.jpg

      Synchronous rectifier MOS, from Sisemi Shenzhen love semiconductor model for the SIF115N080.

60.jpg

       Output protection MOS, from Sisemi Shenzhen love semiconductor model SI60P030.

60.jpg

       Obo OB2612 PD controller.

61.jpg

       The white R005 component is the current sense resistor.

62.jpg

      Family portrait.