Products
Single section with RS resistor protection IC 1715-NHE

Single section with RS resistor protection IC 1715-NHE
Single section with RS resistor protection IC 1715-HQB

Single section with RS resistor protection IC 1715-HQB
2-in-1 single section 1614A-RFB

2-in-1 single section 1614A-RFB
2-in-1 single section 1614A-NKB

2-in-1 single section 1614A-NKB
2-in-1 single section 1614A-RFA

2-in-1 single section 1614A-RFA
2-in-1 single section 1614A-QKE

2-in-1 single section 1614A-QKE
Dual section lithium battery protection IC 1724D-KQA

Dual section lithium battery protection IC 1724D-KQA
Dual section lithium battery protection IC 1724D-OFA

Dual section lithium battery protection IC 1724D-OFA
Winergrand Technology (Hong Kong) Co.,Ltd. Winergrand Technology (Hong Kong) Co.,Ltd. was established in June 2011 and is located in Hong Kong, China. We are a research and development and sales company specializing in circuit protection devices, with years of joint research and development experience with multiple IC design companies in Taiwan. In 2015, we jointly launched single section, double section, 3-5 section lithium battery protection ICs and low-voltage MOS with Taiwan's established lithium battery protection IC design company.
Application
Mobile phone
Mobile phone

Mobile phone battery protection board: As the name suggests, battery protection board is mainly an integrated circuit board that provides protection for rechargeable (generally referring to lithium batteries).

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Intelligent wearable devices
Intelligent wearable devices

The lithium battery (rechargeable) of intelligent wearable devices requires protection, which is determined by its own characteristics. Due to the material of the lithium battery itself, it cannot be overcharged, discharged, overcurrent, short circuited, or charged or discharged at ultra-high temperatures.

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Electric tools
Electric tools

The protection function of lithium batteries is usually achieved by the cooperation of the protection circuit board and current devices such as PTC or TCO, and the protection board is composed of electronic circuits.

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Sweeper
Sweeper

Protection boards typically include control ICs, MOS switches, JEPSUN precision resistors, and auxiliary devices such as NTCs, ID memory, PCBs, etc.

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