LED TUBE LAMP
First Claim
1. 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.
1 Assignment
0 Petitions
Accused Products
Abstract
An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit includes: a pulse generating circuit configured to output one or more pulse signals; wherein the installation detection circuit is configured to detect during 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. The installation detection circuit is further configured to: when it is detected during 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 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.
34 Citations
32 Claims
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1. 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:
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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; anda 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An installation detection circuit configured in a light-emitting diode (LED) tube lamp, the installation detection circuit comprising:
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means for generating one or more pulse signals; means for detecting during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket; and a switch circuit coupled to the means for generating one or more pulse signals, 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. - View Dependent Claims (23, 24, 25, 26)
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27. 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:
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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 Dependent Claims (28, 29, 30, 31, 32)
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Specification