An installation detection circuit configured in a light-emitting diode (LED) tube lamp configured to receive an external driving signal, the installation detection circuit comprising: a pulse generating circuit configured to output one or more pulse signals; wherein the installation detection circuit is configured to detect during at least one of the one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal; and a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit; wherein the installation detection circuit is further configured to: when it is detected during one of the one or more pulse signals that the LED tube lamp is not properly installed on the lamp socket, control the switch circuit to remain in an off state to cause a power loop of the LED tube lamp to be open; and when it is detected during one of the one or more pulse signals that the LED tube lamp is properly installed on the lamp socket, control the switch circuit to remain in a conducting state to cause the power loop of the LED tube lamp to maintain a conducting state, wherein the signal generated from the external driving signal is a sampling signal on the power loop, the installation detection circuit further comprises a detection determining circuit configured to detect the sampling signal for determining whether the LED tube lamp is properly installed on the lamp socket, and the power loop includes the switch circuit and the detection determining circuit, and wherein the pulse generating circuit is configured to output one or more pulse signals independent of whether the detection determining circuit detects the sampling signal. view more

An installation detection circuit configured in a light-emitting diode (LED) tube lamp configured to receive an external driving signal, the installation detection circuit comprising: a pulse generating circuit configured to output one or more pulse signals; wherein the installation detection circuit is configured to detect during at least one of the one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal; and a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit; wherein the installation detection circuit is further configured to:when it is detected during one of the one or more pulse signals that the LED tube lamp is not properly installed on the lamp socket, control the switch circuit to remain in an off state to cause a power loop of the LED tube lamp to be open; andwhen it is detected during one of the one or more pulse signals that the LED tube lamp is properly installed on the lamp socket, control the switch circuit to remain in a conducting state to cause the power loop of the LED tube lamp to maintain a conducting state, and wherein the signal generated from the external driving signal is a sampling signal on the power loop, the installation detection circuit further comprises a detection determining circuit configured to detect the sampling signal for determining whether the LED tube lamp is properly installed on the lamp socket, and the power loop includes the switch circuit and the detection determining circuit; and wherein the installation detection circuit further includes a detection result latching circuit coupled to the switch circuit, wherein the detection result latching circuit is configured to receive the one or more pulse signals to control turning on and off of the switch circuit based on a detection result signal from the detection determining circuit. view more

The installation detection circuit according to claim 4, wherein the pulse generating circuit is coupled to an output of the detection result latching circuit to control the time of the one or more pulse signals.

A detection method adopted by a light-emitting device (LED) tube lamp for preventing a user from electric shock when the LED tube lamp is being installed on a lamp socket, the detection method comprising: when at least one end of the LED tube lamp is installed on the lamp socket, generating one or more pulse signals by a pulse generating circuit, wherein the pulse generating circuit is configured in the LED tube lamp; detecting a sampling signal on a power loop of the LED tube lamp by a detection determining circuit, to detect during the one or more pulse signals whether the other end of the LED tube lamp is properly installed on the lamp socket; receiving the one or more pulse signals through a detection result latching circuit by a switch circuit, wherein the switch circuit is on the power loop; and comparing the sampling signal with a predefined signal, wherein during the one or more pulse signals when the sampling signal is smaller than the predefined signal, the detection method further comprises: controlling the switch circuit to remain in an off state to cause the power loop of the LED tube lamp to be open. view more

The detection method according to claim 24, wherein a period of each of the one or more pulse signals is between 10 microseconds and 1 millisecond.

The installation detection circuit according to claim 1, further comprising a detection result latching circuit coupled to the switch circuit, wherein the detection result latching circuit is configured to receive the one or more pulse signals to control turning on and off of the switch circuit based on a detection result signal from the detection determining circuit. view more

An LED tube lamp, comprising:a lamp tube;two end caps, each of the two end caps coupled to a respective end of the lamp tube;a power supply disposed in one or two end caps;an LED light strip disposed on an inner circumferential surface of the lamp tube, the LED light strip comprising a mounting region and a connecting region, the mounting region for mounting a plurality of LED light sources, the connecting region having at least two soldering pads, and the mounting region and the connecting region being electrically connected to the plurality of LED light sources and the power supply; anda protective layer disposed on a surface of the LED light strip, the protective layer having a plurality of first openings to accommodate the plurality of LED light sources and at least two second openings to accommodate the at least two soldering pads. view more

An LED tube lamp, comprising:a tube, comprising:a main body; andtwo rear end regions respectively at two ends of the main body;two end caps respectively sleeving the two rear end regions, each of the end caps comprising:a lateral wall substantially coaxial with the tube, the lateral wall sleeving the respective rear end region;an end wall substantially perpendicular to the axial direction of the tube; andtwo pins on the end wall for receiving an external driving signal;an LED light strip disposed on an inner circumferential surface of the main body with a plurality of LED light sources mounted thereon;a power supply comprising a circuit board and configured to drive the plurality of LED light sources, the circuit board disposed inside one of the rear end regions and one of the end caps;an adhesive disposed between each of the lateral wall and each of the rear end regions; anda diffusion film disposed on the glass lamp tube so that light emitted from the LED light sources passing through the inner surface of the glass lamp tube and then passing through the diffusion film on the glass lamp tube. view more

The LED tube lamp of claim 13, wherein a portion of the circuit board, one of the rear end regions, the adhesive and one of the lateral wall are stacked sequentially in a radial direction of the LED tube lamp.