China Made Portable Fan - 2

Basic spec shown on the label attached to the product:

Input Voltage: DC 5V

Output Voltage: DC 5V - 9V

Input Current: 0.5A -1A

Output Power: 4W (Max?)

Battery Type: Li-ion 18650

Battery Voltage: 3.7V

I purchased this fan 2-3 years ago. It does works due to some problem. No brand or so called Generic China made. The shape is common. A bit too large for my (man) one hand to keep holding it. Three step motor (peed) control 3 - 2 - 1 (strongest wind).

On PCB Board

U1 - 14 pin IC - no marking. For motor operation and control, plus some other functions.

U2 - DW01 - Battery protection IC

U3 - 4056 - Battery charging IC

U4 - AL462 (not identified). 6P IC. As located colsoe to Coil 4.7uH it may be Up-Converter IC.

Q1 - AOLA (not identified) Maybe MOSFET N-Chanel2300 or similar one

Q2- 2301-P MOSFET (P-Channel) (*). N-Channel is 2300 (see the previous Post)

Q3 - J3Y marking for Transistor S8050.

Q4 - no part found on PCB (skipped for some reason)

D1, D4 - SS34 (Schottkey)

LED 2, 4, 5, 6, 7, 8

L2 - 4.7uH

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U2 - DW01

U3 - 4056

Q1 - AOLA (not identified). Maybe MOSFET N-Chanel 2300 or similar one

Q2- 2301-P MOSFET (P-Channel) (*)

D1, D4 - SS34 (Schottkey)

L2 - 4.7uH

These are used also in the fan I reported (China Made Portable Fan)

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Motor

I do not know what kind of  motor this.

It has a outer magnet ring covered by metal

Horizontal Four Big Coils

Then at the center a spinning shaft which is fixed to the center of the fan with four blades (not seen in this photo).

One Hall Sensor (not seen in the photo, easily broken later when tried to move)

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(*) There are so many suppliers of this part.

NX2301P  Nexperia

ST2301A   Stanton
SQ2301ES  Vishay
SSM2301N  Silicon
AFP2301A Alfa MOS
AM2301PE  Analog Power
MSP2301N3  Bruckewell
STP2301  Stemtron
TSM2301B   Taiwan Semiconductor
TP2301PR  Tiptech
CHT2301GP  Chenmko
LP2301ALT1G  LRC
KI2301BDS  Kexin
PJ2301  Pan-Jit
KI2301DS  T-Y Semiconductor
MMP2301   M-MOS
CJ2301-HF  Comchip
CJ2301S   Jiangsu Changjiang Elec.
RN2301  Toshiba
SI2301   MCC (Micro Commercial Components)
DMG2301U  Diodes
XTP23015CFH   Zetex (Diodes Group now)
UT2301Z  UTC
SMG2301  SECOS Elektronische Bauelemente
SI2301   HT Semi
CES2301  CET
GM2301   Guilin Strong Micro-Electronics Co.,Ltd.
WTC2301   Weitron
SE2301   Willas
H2301N   Hi-Sincerity
AP2301EN-HF   Advanced Power
MTP2301S3   CYStech
2301, 2301L   Goford
STS 2301   SamHop Microelectronics Corp.
SSF2301A  Silkron
2301   ShenZhen CanSheng Industry Development Co.,Ltd
PPMT2301   Prisemi

and some more.

2300 (N-Chanel MOSFET)

ST2300SRG   Stanton

AM2300   AiT Semiconductor
STN2300A   Semtron
AM2300N   Analog Power
KI2300(SI2300)   Kexin
SI2300A   UMW   Marking C009T
Si2300DS   Vishay
MTN2300N3   CYStech
2300   Goford
STS 2300S   SamHop Microelectronics
SSF2300B   Silkrom
2300  ShenZhen CanSheng Industry Development Co.,Ltd
SM2300NSA   Sinopower
DMN2300U   TY Semiconductor Marking NJU
SI2300 (KI2300)  Kexin
SI2300  Shenzhen Tuofeng Semiconductor

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Similar but another model with a fan

ACT