Patent ID: 9723681
Date: 2017-08-01
CPC Classifications: H05B,Y02B

Claim:
1. An LED lamp system with different color temperatures and various operation modes, comprising: a power source being an AC power source; a wave generator being connected to the AC power source for generating driving signals with pre-determinant waveforms based on the switching actions from the AC power source; a driving circuit connected to the AC power source for converting the power from the AC power source into analog signals and voltage steadiness so as to provide power; a first LED lamp set receiving power from the driving circuit as a driving power; a second LED lamp set receiving power from the driving circuit for driving itself; the color temperature of the second LED lamp set being different from that of the first LED lamp set; a microprocessor receiving power from the driving circuit as driving power thereof and receiving signals from the wave generator as driving signals; a first switching circuit connected to the first LED lamp set for actuating or de-actuating the LED lamp set so as to light up or distinguish the first LED lamp set; the first switching circuit being connected to the microprocessor and receiving the signals from the microprocessor for operating the first LED lamp set; furthermore, the first switching circuit also controlling current flowing through the first LED lamp set and thus controls the illumination of the first LED lamp set; and a second switching circuit connected to the second LED lamp set for actuating or de-actuating the LED lamp set so as to light up or distinguish the second LED lamp set; the second switching circuit being connected to the microprocessor and receiving the signals from the microprocessor for operating the second LED lamp set; and furthermore, the second switching circuit also controlling current flowing through the second LED lamp set and thus controlling the illumination of the second LED lamp set; and wherein in a manual operation mode, a light adjuster is installed between the driving circuit, and the wave generator for light adjusting; a manual setting unit in the microprocessor sets the first and second LED lamp sets to be only received the manual operations from the user for deciding the illumination state of the first and second LED lamp set; then driving signals from the wave generator enter into the microprocessor and then the microprocessor instructs the first and second switching circuit for actuating or de-actuating the first and second LED lamp sets; wherein the AC power source is used as an AC input end, and the wave generator is an optical coupler; the driving circuit includes an AC to DC circuit and a voltage steady circuit; and an output end of the voltage steady circuit is connected to an output end of the AC to DC circuit; the first and second switching circuits are field effect transistors, which are a first field effect transistor and a second field effect transistor, respectively; wherein positive electrodes of the first LED lamp set and the second LED lamp set are connected to a positive electrode of an output end of the driving circuit; the negative electrodes of the first and second LED lamp sets are connected to the drains of the first field effect transistor and the second field effect transistor, respectively; a source of the first field effect transistor and a source of the second field effect transistor are connected to a negative electrode of an output end of the driving circuit; and a gate of the first field effect transistor is connected to a first pulse width modulation signal output end of the microprocessor and a gate of the second field effect transistor is connected to a second pulse width modulation signal output end of the microprocessor; the AC input end includes an L line, a null line and a grounding GND; one input end of the optical coupler is connected to the null line of the AC input end and another end thereof is connected to the L line through the light adjuster; an output end of the optical coupler is connected to an AD wherein when the positive half cycle of the AC current flows through a positive electrode of a light emitting diode of the optical coupler, the light emitting diode of the optical coupler will light up to conduct a transistor of the optical coupler; a voltage level of a pulse into the AD wherein an output end of a voltage regulation circuit is connected to a voltage input end of the microprocessor for providing working voltage to the microprocessor; the voltage regulation circuit is a low difference linear voltage integrated circuit; the AC to DC circuit serves to convert AC current from the AC power source to DC current which is voltage and current steady; the voltage and current are adjustable by the AC to DC circuit; and an output end of the AC to DC circuit is connected to the first and second LED lamp set for providing working power to the first and second LED lamp set.