Undervoltage detection circuit, remote controller and direct current device
By designing an undervoltage detection circuit, the power supply voltage is collected and a warning is given when it falls below the threshold voltage. This solves the problem of remote control failure caused by low voltage in remote control devices, and enables early warning and normal operation of the equipment.
CN224287000UActive Publication Date: 2026-05-26TCL OVERSEAS ELECTRONIC (HUIZHOU) CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TCL OVERSEAS ELECTRONIC (HUIZHOU) CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-26
Smart Images
Figure CN224287000U_ABST
Abstract
This utility model discloses an undervoltage detection circuit, a remote control, and a DC device. The undervoltage detection circuit includes a voltage detection unit and a power-down drive unit. The input terminal of the voltage detection unit is connected to the power supply under test, the output terminal of the voltage detection unit is connected to the input terminal of the power-down drive unit, and the output terminal of the power-down drive unit is connected to the load. The voltage detection unit acquires the operating voltage of the power supply under test, generates an undervoltage drive signal when the operating voltage is lower than the threshold voltage, and transmits the undervoltage drive signal to the power-down drive unit. Upon receiving the undervoltage drive signal, the power-down drive unit generates an undervoltage warning signal to drive the load to provide a low-voltage warning.
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