Patent ID: 8063582
Filing Date: 2011-11-22
Classification: H02M,H05B

Abstract:
1. A uni-directional light emitting diode drive circuit in bi-directional divided power impedance, wherein a first impedance includes capacitive impedance components, inductive impedance components, or resistive impedance components and a second impedance includes capacitive impedance components, inductive impedance components, or resistive impedance components; wherein, the first impedance and the second impedance are in series connection to receive the following: 1) AC power with a constant or variable voltage and a constant or variable frequency; or 2) AC power of bi-directional sinusoidal wave voltage or bi-directional square wave voltage, or bi-directional pulse wave voltage with constant or variable voltage and constant or variable frequency or period which is converted from a DC power source; or 3) AC power of bi-directional sinusoidal wave voltage or bi-directional square wave voltage, or bi-directional pulse wave voltage with constant or variable voltage and constant or variable frequency or period converted from the DC power which is further rectified from an AC power; the first impedance, second impedance, rectifier device and uni-directional conducting light emitting diode set as well as the light emitting diode and various optional auxiliary circuit components are based on application needs, wherein the circuit components can be optionally installed or not installed as needed and the installed quantity may include one, wherein if more than one circuit component is selected in the application, the corresponding polarity relationship of the selected components shall be determined based on circuit function requirement to execute series connection, or parallel connection or series and parallel connections, wherein: the circuit operating functions are the following: