Patent ID: 9717128
Date: 2017-07-25
CPC Classifications: F21K,F21Y,H05B

Claim:
1. A high-safety LED tube, comprising: a first side having a first electrode and a second electrode; a second side having a third electrode and a fourth electrode; a first impedance module coupled to the first side; a second impedance module coupled to the second side; a first energy sensor having a first terminal coupled to the first impedance module; a second energy sensor having a first terminal coupled to the second impedance module; an LED unit coupled to the first impedance module and the second impedance module; a switch coupled to the LED unit; and a state control module coupled to the switch; wherein, when the first energy sensor or the second energy sensor detects an energy flowing between the first electrode and the second electrode or between the third electrode and the fourth electrode, the state control module turns on the switch; wherein the first impedance module includes a first impedance unit and a second impedance unit, and the second impedance module includes a third impedance unit and a fourth impedance unit; the first energy sensor and the second energy sensor are each a voltage sensor; the energy is a voltage difference between the first electrode and the second electrode or a voltage difference between the third electrode and the fourth electrode.