| 摘要 |
The present invention provides a driving device for an AC direct coupled light emitting diode with current deviation improved, comprising: a rectifying unit which provides electromagnetic wave rectification power as alternating current voltage is transmitted from the outside; a lamp unit having a first luminous diode group composed of a plurality of luminous diodes and connected to the rectifying unit, in which the electromagnetic wave rectification power is transmitted, and a second luminous diode group composed of a plurality of luminous diodes and serially connected to the first luminous diode group; a current drive control unit connected to the first luminous diode group and the second luminous diode group, which controls the current flowing in the first luminous diode group and the current flowing in the second luminous diode group; and a rectification power switch unit, which is turned on when the electromagnetic wave rectification power is transmitted or an activation signal is applied, transmitting the electromagnetic wave rectification power to the second luminous diode group, and turned off when the electromagnetic wave rectification power becomes higher than predetermined power or input current becomes higher than predetermined current. |
