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US 2024/0204559 A1Published application
Emergency lamp control circuit
AssigneeXiamen Topstar Lighting Co., Ltd.
InventorsYongjie WU, Naijun YANG
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AssigneeXiamen Topstar Lighting Co., Ltd.
InventorsYongjie WU, Naijun YANG
Estimating the term…
An emergency lamp control circuit includes a dimmer and an emergency detection module. The emergency detection module is connected in parallel to two ends of the dimmer, one end of the emergency detection module is connected to a live wire end of a mains supply, the other end is connected to one end of an emergency lamp, and the other end of the emergency lamp is connected to a null wire end of the mains supply. Then, a detection loop can be provided for the emergency lamp when the dimmer is powered off, so that a situation that the emergency lamp enters an emergency lighting state by mistake because voltages on the live wire end and the null wire end of the mains supply cannot be detected is avoided; and only when the power grid is powered off, the lamp smoothly enters the emergency lighting state.
An emergency lamp control circuit, comprising a dimmer and an emergency detection module, the emergency detection module being connected in parallel to two ends of the dimmer, one end of the emergency detection module connected to the dimmer being connected to a live wire end of a mains supply, the other end of the emergency detection module connected to the dimmer being electrically connected to one end of an emergency lamp, and the other end of the emergency lamp being connected to a null wire end of the mains supply.
Dependencies are inferred from the claim text.