Mettler-toledo Instruments (shanghai) Co. Ltd

Yingzhen Tong

Changlin Wang

Xiaoling Zhou

Zhenhua Lin

Bo Zhao

Bo Zhou

ShuYi Xu

Fanfeng Zu

Chengyang Ye

Jin Tang

Jianjun Han

A power on/off control circuit and an electronic device is provided, the circuit including: a switching element, a first semiconductor switching circuit including a first semiconductor switching element, a second semiconductor switching circuit including a second semiconductor switching element, and a holding circuit connected between a first terminal of the first semiconductor switching element and a second terminal of the second semiconductor switching element. When the switching element is closed, the first semiconductor switching element is turned on. When the first semiconductor switching element is turned on, the second semiconductor switching element is turned on, and a power on signal is output via the second terminal of the second semiconductor switching element. When the second semiconductor switching element is turned on, the holding circuit is operable to maintain the on state of the first semiconductor switching element. The control circuit can stably lock a started state.

Power on/off control circuit and electronic device

A low-power electronic pipette has a charging management module (), a control module (), a motor driving module (), a display module (), a communication module (), a sensing module (), and a battery module (). The charging management module, the communication module, and the sensing module are each in two-way communication with the control module. The display module and the motor driving module are each in one-way communication with the control module. The battery module supplies energy to the low-power electronic pipette. When the sensing module acquires a signal and determines that the low-power electronic pipette has not been operated for a predetermined period and is not in a charging state, the low-power electronic pipette enters a low-power mode, in which the control module turns off the charging management module, the motor driving module, the display module, and the communication module, and the control module enters a sleep state.

Low-power electronic pipette

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Shanghai, China

Yingzhen Tong