Patent ID: 9732915
Date: 2017-08-15
CPC Classifications: F21K,F21Y,H05B,Y02B

Claim:
1. An LED lamp comprising: a first external connection pin connected to a first terminal of an electronic or magnetic fluorescent lamp ballast; a second external connection pin connected to a second terminal of the electronic or magnetic fluorescent lamp ballast; an LED array disposed between the first external connection pin and the second external connection pin; a first diode having an anode connected to the first external connection pin and a cathode connected to an anode terminal of the LED array; a second diode having an cathode connected to the second external connection pin and an anode connected to a cathode terminal of the LED array; a third diode having an anode connected to the cathode of the second diode and a cathode connected to the cathode of the first diode; a fourth diode having an anode connected to the anode of the second diode and a cathode connected to the anode of the first diode; and one or more capacitor pairs intervening between the first external connection pin and the second external connection pin and connected in series with the LED array and the first and second diodes, wherein each of the one or more capacitor pairs includes two polarized capacitors connected back to back.