| 摘要 |
Provided is an LED lamp. The LED lamp according to an embodiment of the present invention comprises: bridge diodes (D1, D2) at one end and the other end of an LED lamp, which include at least one diode connected in series and in parallel to one end and the other end of the LED lamp; a resistance, a condenser, and a Zener diode (R1, C1, ZD1) connected in parallel to the bridge diode at one end (D1); a constant current control unit (U2) connected to a node at the other end of the Zener diode (ZD1); a driving semiconductor (Q2) connected to an output terminal (OUT) of the constant current control unit (U2); a frequency determination unit (U1) connected to a node at one end of the driving semiconductor (Q2) and to the output terminal (OUT) of the constant current control unit (U2); a driving semiconductor (Q1) connected to the frequency determination unit (U1); a large capacity smoother condenser (C2) connected to the other end of the driving semiconductor (Q1); at least one LED (LED 1 to N) which is connected to the other end of the driving semiconductor (Q2) through a coil (L), and connected between the large capacity smoother condenser (C2) and the bridge diode at the other end (D2) in series and in parallel; a first electric shock protection switch (PS1) connected to at least one diode included in the bridge diode (D1); and a second electric shock protection switch (PS2) connected to at least one diode included in the bridge diode (D2). |
