TWM471728U - Color temperature adjustable LED lighting device - Google Patents

Description

Color-adjustable light-emitting diode lighting device

The present invention relates to a light-emitting diode lighting device, and more particularly to a light-emitting diode lighting device capable of color temperature.

A Light-Emitting Diode (LED) is a light-emitting semiconductor electronic component that transmits a composite light source composed of trivalent and pentavalent elements. This kind of electronic component appeared as early as 1962. In the early days, it only emitted low-light red light, and then developed other monochromatic light. Today, the light that can be emitted has spread all over visible light, infrared light and ultraviolet light, and the luminosity is also improved. Quite a high degree. The use of the initial indicator lights and display panels; with the emergence of white light emitting diodes, in recent years has gradually developed to be widely used for lighting purposes.

The light-emitting diode can only be turned on in one direction, which is called forward bias. When current flows, the electron and the hole overlap in it to emit monochromatic light. This is called electroluminescence effect, and the wavelength and color of the light. The type of semiconductor material used is related to the elemental impurities that are intentionally infiltrated. It has the advantages of high efficiency, long life, not easy to break, fast response, high reliability and other traditional light sources. The luminous efficiency of the light-emitting diode lighting device has improved in recent years; the cost per thousand lumens, and the price drop due to a large amount of capital investment, has led to the trend that traditional incandescent light bulbs and fluorescent lamps have gradually been replaced in recent years.

However, many current LED lighting devices only have a fixed color temperature source. The color temperature of the light source depends on the light-emitting diode disposed on the lighting device. Therefore, if the color temperature of the light source needs to be replaced, the light-emitting diode must be replaced, and the light-emitting diode lighting device cannot be switched at any time during use. Light sources of different color temperatures, therefore, there is still considerable room for improvement in current light-emitting diode lighting devices.

Therefore, in order to solve the above problems, the present invention provides a luminescent temperature LED illuminating device that adjusts the luminescent temperature of a light source that generates various color temperatures according to the difference in the number of times the power switch is turned on.

One of the purposes of the present invention is to provide a color-modulating LED lighting device capable of enabling one of a plurality of light-emitting diode units having different color temperatures according to the number of times the power switch is turned on, so that the light-emitting diode lighting device An illumination source that produces various color temperature values corresponding to the number of times the power switch is turned on.

One of the purposes of the present invention is to provide a color-modulating LED lighting device capable of enabling a plurality of light-emitting diode units having different color temperatures according to the number of times the power switch is turned on, so that the light-emitting diode units are generated. Light sources of different color temperature values are mixed with each other, so that the light-emitting diode lighting device generates illumination light sources of various color temperature values corresponding to the number of times the power switch is turned on.

One of the purposes of the present invention is to provide a color illuminating LED illuminating device, which adjusts the duty ratio of a driving signal by a pulse width modulator to adjust the conduction time of a light emitting diode unit, thereby Adjust the brightness and color temperature values of the LED unit.

One of the purposes of the present invention is to provide a color-modulating LED lighting device, wherein the duty ratio of the driving signal is adjusted by at least one pulse width modulator to adjust the complex number The on-time of the light-emitting diode unit is adjusted, and then the brightness and color temperature values of the light-emitting diode units are adjusted and then mixed, so that the color temperature value of the illuminable light source can be more varied.

In order to achieve the above-mentioned various purposes and effects, the present invention discloses a color-adjustable light-emitting diode lighting device, comprising: a light-emitting diode module for generating an illumination source, the illumination source having a a color temperature value; and a driving circuit, receiving an input power source, and generating at least one driving signal according to the input power source, the driving signal is used to drive the LED module to generate an illumination source, and the driving circuit adjusts the driving signal to adjust the color temperature value of the illumination source .

10‧‧‧Lighting diode module

101‧‧‧Lighting diode unit

102‧‧‧Lighting diode unit

103‧‧‧Switch unit

104‧‧‧Switch unit

30‧‧‧Drive circuit

301‧‧‧Stabilizer

302‧‧‧Detection unit

303‧‧‧Control circuit

3031‧‧‧Control unit

3032‧‧‧ Pulse width modulator

3033‧‧‧Inverter

3034‧‧‧ Pulse width modulator

50‧‧‧Power switch

CI‧‧‧Control Instructions

CTA‧‧‧ color temperature adjustment signal

CTA1‧‧‧ color temperature adjustment signal

CTA2‧‧‧ color temperature adjustment signal

DS‧‧‧Detection signal

DR‧‧‧ drive signal

DR1‧‧‧ drive signal

DR2‧‧‧ drive signal

V _IN ‧‧‧Input power supply

V _DD ‧‧‧Power supply

T ₁ ‧ ‧ hours

T ₂ ‧ ‧ hours

T ₃ ‧ ‧ hours

T _R ‧‧‧Reset time

Figure 1 is a block diagram of the illuminating light-emitting diode illuminating device of the present invention; Fig. 2 is a condensable temperature LED lighting device of the first embodiment of the present invention. Circuit block diagram; FIG. 3 is a schematic diagram of the operation of the color tunable light-emitting diode lighting device of the first embodiment of the present invention; FIG. 4 is an adjustable view of the second embodiment of the present invention Circuit block diagram of a color temperature LED illuminating device; Fig. 5 is a schematic view showing the operation of the color tunable LED illuminating device of the second embodiment of the present invention; Fig. 6: A circuit block diagram of a color-developable light-emitting diode lighting device according to a third embodiment of the present invention; FIG. 7 is a schematic view showing the operation of the color-developable light-emitting diode lighting device of the third embodiment of the present invention. ; Figure 8 is a circuit block diagram of a color tunable LED lighting device of a fourth embodiment of the present invention; and Figure 9 is a color gradable temperature of the fourth embodiment of the present invention. Schematic diagram of the operation of the light-emitting diode lighting device.

In order to give your reviewers a better understanding and understanding of the characteristics of the creation and the efficacies achieved, please refer to the preferred embodiment and the detailed description as follows: First, please refer to Figure 1, which is A block diagram of the color-developable light-emitting diode lighting device of the present invention. As shown in the figure, the color-modulated LED lighting device of the present invention comprises a light-emitting diode module 10 and a driving circuit 30. The LED module 10 can include at least one LED unit. The LED module 10 is used to generate an illumination source having a color temperature value. The driving circuit 30 is coupled to an input power source V _IN and generates at least one driving signal DR according to the input power source V _IN . The driving signal DR is used to drive the LED module 10 to generate an illumination source, and the driving circuit 30 is adjusted according to the input power source V _IN . The driving signal DR further adjusts the color temperature value of the illumination source generated by the LED module 10. In addition, the present invention may further include a power switch 50 coupled between the input power source V _IN and the driving circuit 30 for indicating the switching switch of the LED lighting device, and is turned on according to one of the user control commands. (ON) or OFF (OFF) to transfer the input power source V _IN to the drive circuit 30.

Please refer to FIG. 2, which is a circuit block diagram of a color-correctable light-emitting diode lighting device according to a first embodiment of the present invention. As shown, the driving circuit 30 includes a voltage stabilizing unit 301, a detecting unit 302 and a control circuit 303. The voltage stabilizing unit 301 can be an inverter that receives the input power V _IN via the power switch 50 and stabilizes the input power V _IN to generate a power supply V _DD to provide the light emitting diode module 10 to generate an illumination source. The power supply required. Power detecting unit 302 receives an input V _IN and the power supply V _DD, which is used to detect the input voltage V _IN of the power level, and according to the input voltage source V _IN corresponding to one level of the output of the detection signal DS. For example, when the power switch 50 is turned on, the detecting unit 302 detects the input power V _IN , and when the power switch 50 is turned off, the detecting unit 302 does not detect the input power V _IN .

In this embodiment, the control circuit 303 includes a control unit 3031 and a pulse width modulator 3032. The control unit 3031 receives the power supply V _DD and the detection signal DS. The power supply V _{DD is} used to supply the power required for the operation of the control unit 3031, and the control unit 3031 determines whether the power switch 50 is turned on according to the detection signal DS. And according to the power supply V _{DD ,} it is determined whether the power switch 50 is continuously turned on and the number of times of turning on the power switch 50 is counted, and a color temperature adjustment signal CTA corresponding to the number of times the power switch 50 is turned on is generated. The pulse width modulator 3032 generates a driving signal DR corresponding to the number of times the power switch 50 is turned on according to the color temperature adjustment signal CTA to drive the LED module 10.

Wherein, since the voltage stabilizing unit 301 has a voltage stabilizing capacitor (not shown) coupled to the output end thereof, the stabilizing capacitor is used for the regulated power supply V _DD , and when the power switch 50 is turned off, the voltage regulator is regulated. The charge stored in the capacitor is gradually reduced, that is, the voltage level of the power supply V _DD is gradually decreased. Therefore, when the power switch 50 is just turned on, the control unit 3031 knows the power switch by detecting the voltage level of the power supply V _DD . When the voltage level of the power supply V _DD is higher than a threshold value, the control unit 3031 determines that the power switch 50 is turned off for less than a reset time and continuously counts the number of times the power switch 50 is turned on, and outputs the corresponding power source. When the voltage level of the power supply V _DD is lower than the threshold value, the control unit 3031 determines that the power switch 50 is turned off for more than the reset time and re-counts the number of times the power switch 50 is turned on. And outputting a color temperature adjustment signal CTA corresponding to the power switch 50 for the first time.

In addition, the creation unit may not need to set the threshold value in the control unit 3031, or when the power switch 50 is just turned on, the detecting unit 3031 receives the power supply V _DD , that is, the time when the power switch 50 is turned off is less than the reset time. Output the corresponding color temperature adjustment signal.

The LED module 10 includes a light emitting diode unit 101 and a switch unit 103. The illuminating diode unit 101 is coupled to the voltage stabilizing unit 301 and configured to generate an illuminating light source according to the power supply V _DD . The first end of the switch unit 103 is coupled to one of the negative ends of the LED unit 101, and the second end of the switch unit 103 is coupled to a reference voltage end, and one of the control units 103 is coupled to the pulse width. The modulator 3032 is configured to be turned on or off according to the driving signal DR to drive the LED unit 101 to generate an illumination source according to the driving signal DR. In this embodiment, the switching unit 103 is an N-type metal oxide half field effect transistor (N-MOSFET), but the present invention is not limited thereto, and the switching unit 103 can also be any switching element well known in the art.

Please refer to FIG. 3, which is a schematic diagram of the operation of the color-correctable light-emitting diode lighting device of the first embodiment of the present invention. As shown in the figure, when the power switch 50 is turned on according to the control command issued by the user (time T ₁ ), the detecting unit 302 detects the input power V _IN and outputs the detection signal DS, and the control unit 3031 detects It is detected that the voltage level of the power supply VDD is lower than the threshold value. Therefore, the control unit 3031 transmits the color temperature adjustment signal CTA to the pulse corresponding to the power switch 50 for the first time according to the voltage level of the detection signal DS and the power supply V _DD . The wave width modulator 3032 causes the pulse width modulator 3032 to generate a 100% duty cycle pulse width modulation signal as the driving signal DR according to the color temperature adjustment signal CTA, so that the switching unit 103 switches to 100% conduction, so that the light is turned on. The diode unit 501 is driven by 100% power to produce an illumination source.

Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T _R ), the time T _{2 is} entered, and since the control unit 3031 detects that the voltage level of the power supply V _DD is higher than the threshold value, the control unit 3031 continuously counts the number of times the power switch 50 is turned on, and transmits a color temperature adjustment signal CTA corresponding to the power switch 50 for the second time to the pulse width modulator 3032, so that the pulse width modulator 3032 adjusts the signal according to the color temperature CTA. A pulse width modulation signal of 60% duty ratio is generated as the driving signal DR, so that the switching unit 103 is switched to 60% conduction, so that the LED unit 101 is driven by 60% of power to generate an illumination source.

Then, after the power switch 10 is turned off briefly, the power switch 10 is turned on (the off time does not exceed the reset time T _R ), and the time T _{3 is} entered. The control unit 3031 transmits the color temperature adjustment signal CTA corresponding to the power switch 50 for the third time to the pulse width adjustment. The transformer 3032 causes the pulse width modulator 3032 to generate a 40% duty cycle pulse width modulation signal as the driving signal DR according to the color temperature adjustment signal CTA, so that the switching unit 103 is switched to 40% conduction, so that the light emitting diode Unit 101 is driven by 40% power to produce an illumination source.

In the present embodiment, the illumination light source generated by the LED unit 101 has a color temperature value of 7000 K of cool white light, but the present invention is not limited to the above color temperature. Therefore, when the power switch 50 is turned on for the first time (time T ₁ ), since the light emitting diode unit 101 is driven by 100% of power, the illumination source emitted by the LED unit 101 is 100% color temperature value 7000K. Cold white light. When the power switch 50 is turned on for the second time (time T ₂ ), since the light emitting diode unit 101 is driven by 60% of power, the illumination source emitted by the LED unit 101 is 60% of the white light with a color temperature value of 4200K. . When the power switch 50 is turned on for the third time (time T ₃ ), since the light emitting diode unit 101 is driven by 40% of power, the illumination source emitted by the LED unit 101 is 40% of the color temperature value of 2800K. White light.

Based on the above, the color tunable LED lighting device of the first embodiment of the present invention detects the conduction state of the power switch 50 by the detecting unit 302, and counts and judges the power switch 50 by the control unit 3031. The number of times of conduction is transmitted, and the corresponding color temperature adjustment signal CTA is transmitted according to the number of times of the power switch 50, so that the pulse width modulator 3032 transmits the driving signal DR corresponding to the number of times of turning on the power switch 50, so that the light emitting diode module 10 generates various kinds. Illumination source for brightness and color temperature values.

Please refer to FIG. 4, which is a circuit block diagram of a color-correctable light-emitting diode lighting device according to a second embodiment of the present invention. The difference between the embodiment and the first embodiment is that the LED module 10 further includes a LED unit 102 and a switch unit 104, and the control circuit 303 only includes the control unit 3031, and the rest is the same as the first implementation. For example, it will not be described again.

As shown in the figure, the control circuit 303 includes only a control unit 3031. The control unit 3031 receives the power supply V _DD and the detection signal DS, and according to the detection signal DS, the power switch 50 is turned on or off according to the detection signal DS, and is supplied according to the supply. The power source V _DD knows whether the power switch 50 is continuously switched, and counts the number of times the power switch 50 is turned on, and outputs a driving signal DR1 and/or DR2 corresponding to the number of times the power switch 50 is turned on.

The LED module 10 includes the LEDs 101 and 102 and the switching units 103 and 104. The switch unit 103 is configured to be turned on or off according to the driving signal DR1 to drive the LED unit 101 to generate a first light source according to the driving signal DR1. The first light source has a first color temperature value. The illuminating diode unit 102 is coupled to the voltage stabilizing unit 301 and configured to generate a second light source according to the power supply V _DD . The first end of the switch unit 104 is coupled to the negative terminal of the LED unit 102, and the second end of the switch unit 104 is coupled to the reference voltage terminal, and one of the control terminals 104 is coupled to the control circuit 303. For turning on or off according to the driving signal DR2, the second light source is generated by driving the LED unit 102 according to the driving signal DR2, and the second light source has a second color temperature.

Please refer to FIG. 5, which is a schematic diagram of the operation of the color-correctable light-emitting diode lighting device of the second embodiment of the present invention. As shown in the figure, when the power switch 50 is turned on according to the control command issued by the user (time T ₁ ), the detecting unit 302 detects the input power V _IN and outputs the detection signal DS, and the control unit 3031 detects It is detected that the voltage level of the power supply V _DD is lower than the threshold value. Therefore, the control unit 3031 transmits the driving signal DR1 to the switching unit 103 according to the detecting signal DS and the power supply V _DD , so that the switching unit 103 is switched to be turned on. The illuminating diode unit 101 is configured such that the illuminating light source emitted from the illuminating diode module 10 is the first light source generated by the illuminating diode unit 101.

Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T _R ), the time T _{2 is} entered, and since the control unit 3031 detects that the voltage level of the power supply V _DD is higher than the threshold value, the control is performed. The unit 3031 determines that the power switch 50 is continuously switched, and continuously counts the number of times the power switch 50 is turned on, and since the control unit 3031 counts the number of times the power switch 50 is turned on, it is known that the second time is turned on to transmit the drive. The signal DR2 is switched to the switch unit 104 to switch the switch unit 104 to be turned on to separately enable the light emitting diode unit 102, so that the illumination source emitted by the LED module 10 is the second light source generated by the LED unit 102. .

Then, after the power switch 50 is turned off briefly, the power switch 50 is turned on (the off time does not exceed the reset time T _R ), and the time T _{3 is} entered. The control unit 3031 determines that the power switch 10 is continuously switched, and is known to be turned on for the third time by the counting result. The driving signals DR1 and DR2 are respectively transmitted to the switching units 103 and 104 to switch the switching units 103 and 104 to be turned on to simultaneously enable the LED units 101 and 102 to generate the LED units 101 and 102. The first light source and the second light source are mixed with each other to be an illumination source emitted by the LED module 10, and since the LED units 101 and 102 are simultaneously fully turned on, the color temperature of the illumination source is the first source and the second The average color temperature of the light source.

In this embodiment, the first light source generated by the LED unit 101 has a color temperature value of 7000K cold white light, and the second light source generated by the LED unit 202 has a color temperature value of 2000K warm white light. Two-color temperature, but this creation is not limited to the above color temperature.

Therefore, when the power switch 50 is turned on for the first time (time T ₁ ), the illumination source emitted by the LED module 10 is the first color temperature of the luminescent color of the illuminating diode unit 101 of 7000K cold white light. When the power switch 50 is turned on for the second time (time T ₂ ), the illumination source emitted by the LED module 10 is the second color temperature of the light-emitting diode unit 102 having a color temperature value of 2000K warm white light. When the power switch 50 is turned on for the third time (time T ₃ ), the illumination source emitted by the LED module 10 is a color temperature value of 4500K white light mixed with the LED units 101 and 102.

Based on the above, the color tunable LED lighting device of the second embodiment of the present invention detects the conduction state of the power switch 50 by the detecting unit 302, and counts and judges the power switch 50 by the control unit 3031. The number of times of conduction is transmitted, and the corresponding driving signals DR1 and/or DR2 are transmitted according to the number of times the power switch 50 is turned on, so that the LED units 101 and/or 102 can be illuminated, so that the LED module 10 has the first color temperature (lighting). The color temperature value of the diode 101), the second color temperature (light emitting diode 102), or the illumination source mixed with each other.

Please refer to FIG. 6, which is a circuit block diagram of a color-correctable light-emitting diode lighting device according to a third embodiment of the present invention. The difference between this embodiment and the first embodiment is that the control circuit 303 further includes an inverter 3033, and the LED module 10 includes The photodiode unit 102 and the switching unit 104.

As shown in the figure, the inverter 3033 is coupled to the pulse width modulator 3032 for inverting the pulse width modulator 3032 to output a driving signal DR1 to generate a driving signal DR2, and outputting the driving signal DR2 to the switch. The unit 104 turns on the switch unit 104 to drive the LED unit 102. The rest of the principle is as described in the first embodiment and the second embodiment, and therefore will not be described again.

Please refer to FIG. 7 , which is a schematic diagram of the operation of the color tunable LED lighting device of the third embodiment of the present invention. As shown in the figure, when the power switch 50 is turned on (time T ₁ ), the control unit 3031 transmits the color temperature adjustment signal CTA corresponding to the power switch 50 for the first time according to the detection signal DS and the power supply V _DD to the pulse width modulation. The device 3032 causes the pulse width modulator 3032 to output the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA to the switching unit 103 to switch the switching unit 103 to be turned on, and the driving signal DR2 is the driving signal DR1. Since the duty ratio of the driving signal DR2 is 0%, only the light emitting diode unit 101 is enabled, so that the illumination light source emitted from the LED module 10 is the first one generated by the LED unit 101. light source.

Then, after the power switch 10 is turned off briefly and then turned on (the off time does not exceed the reset time T _R ), the time T _{2 is} entered, and the control unit 3031 transmits the corresponding power switch 50 for the second time according to the detection signal DS and the power supply V _DD . The color temperature adjustment signal CTA to the pulse width modulator 3032 causes the pulse width modulator 3032 to output the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA to 60% to the switching unit 103, so that the light emitting diode unit 101 The driving signal DR1 with a duty ratio of 60% is enabled, and since the driving signal DR2 is the inversion of the driving signal DR1, the duty ratio of the driving signal DR2 is 40%, and the LED unit 102 is also enabled. The illumination source emitted from the LED module 10 is a mixture of the first source and the second source generated by the LED units 101 and 102, and the duty ratio is 60% due to the LED 101. The driving signal DR1 is enabled, so the brightness of the first light source is 60% of the full power, and the brightness of the second light source is also 40% of the full power.

Then, after the power switch 10 is turned off briefly and then turned on (the off time does not exceed the reset time T _R ), the time T _{3 is} entered, and the control unit 3031 transmits the corresponding power switch 50 for the third time according to the detection signal DS and the power supply V _DD . The color temperature adjustment signal CTA to the pulse width modulator 3032 causes the pulse width modulator 3032 to output the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA to 40% to the switching unit 103, so that the light emitting diode unit 101 The driving signal DR1 with a duty ratio of 40% is enabled, and since the driving signal DR2 is the inversion of the driving signal DR1, the duty ratio of the driving signal DR2 is 60%, and the LED unit 102 is also enabled. The illumination source emitted from the LED module 10 is a mixture of the first source and the second source generated by the LEDs 101 and 102, and the duty ratio is 40% due to the LED unit 101. The driving signal DR1 is enabled, so the brightness of the first light source is 40% of the total energy, and the brightness of the second light source is also 60% of the full power.

As can be seen from the above, the color temperature value of the LED unit 101 of the present embodiment is 7000K, and the color temperature value of the LED unit 102 is 2000K, and the pulse wave modulation signal output by the pulse width modulator 3032 ( The duty ratios of the driving signals DR1 and DR2 are respectively adjusted to adjust the brightness of the LED units 101 and 102, and the color temperatures of the LED units 101 and 102 are respectively adjusted, and the illumination source of the two can be adjusted. The color temperature and brightness adjust the illumination source emitted by the LED module 10 between 7000K and 2000K.

For example, when the duty ratios of the driving signals DR1 and DR2 are 100% and 0%, respectively, the illumination light The color temperature value of the source is 7000K. If the duty ratios of the driving signals DR1 and DR2 are 0% and 100%, respectively, the color temperature value of the illumination source is 2000K, and the duty ratios of the driving signals DR1 and DR2 are respectively 50%. 50%, the color temperature value of the illumination source is 4500K. That is, the higher the duty ratio of the driving signal DR1, the lower the duty ratio of the driving signal DR2 is, and the closer the color temperature value of the illumination source is to 7000K.

Please refer to FIG. 8 , which is a circuit block diagram of a color tunable LED lighting device according to a fourth embodiment of the present invention. The difference between this embodiment and the third embodiment lies in the part of the control circuit 303, and the rest is the same as the third embodiment and will not be described again.

As shown, the control circuit 303 includes a control unit 3031, a pulse width modulator 3032, and a pulse width modulator 3034. The control unit 3031 is coupled to the voltage stabilizing unit 301 and the detecting unit 302 to supply the power source V _DD as the power source required for operation, and the power switch 50 is turned on or off according to the detecting signal DS transmitted by the detecting unit 302. The number of times the power switch 50 is turned on is obtained according to the power supply V _DD , and the plurality of color temperature adjustment signals CTA1 and CTA2 corresponding to the number of times the power switch 50 is turned on are output. The pulse width modulator 3032 is coupled to the control unit 3031, and generates a corresponding pulse modulation signal as the driving signal DR1 according to the color temperature adjustment signal CTA1. The pulse width modulator 3034 is coupled to the control unit 3031, and generates a corresponding pulse modulation signal as the driving signal DR2 according to the color temperature adjustment signal CTA2.

Please refer to FIG. 9 , which is a schematic diagram of the operation of the color tunable LED lighting device of the third embodiment of the present invention. The difference between this embodiment and the second embodiment is only that the control unit 3031 of the embodiment controls the pulse width modulation signals 30A1 and 3034 to generate pulse wave modulation signals of various duty ratios through the color temperature adjustment signals CTA1 and CTA2. As the driving signals DR1, DR2, the duty ratios of the driving signals DR1, DR2 are not mutually inverted as in the third embodiment.

As shown in the figure, when the power switch 50 is turned on (time T ₁ ), the control unit 3031 transmits the color temperature adjustment signals CTA1 and CAT2 corresponding to the power switch 50 for the first time to the pulse width according to the detection signal DS and the power supply V _{DD .} The modulators 3032 and 3034 enable the pulse width modulator 3032 to transmit the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA1 to 100% to the switching unit 103, so that the switching unit 103 is switched to be fully turned on, and the pulse wave is made. The width modulator 3034 transmits the driving signal DR2 corresponding to the duty ratio of the color temperature adjustment signal CTA2 to 0% to the switching unit 104, so that the switching unit 104 is switched off to enable only the light emitting diode unit 101 to make the light emitting diode The illumination source emitted by the body module 10 is the first light source generated by the LED 201.

Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T _R ), the time T _{2 is} entered, and the control unit 3031 transmits the corresponding power switch 50 according to the detection signal DS and the power supply V _{DD for the} second time. The color temperature adjustment signals CTA1 and CTA2 are connected to the pulse width modulators 3032 and 3034, so that the pulse width modulator 3032 generates the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA1 to 60% to the switching unit 103, so that the light emitting diodes The pole body 101 is enabled by the driving signal DR1 with a duty ratio of 60%, so that the pulse width modulator 3034 also generates the driving signal DR2 corresponding to the duty ratio of the color temperature adjusting signal CTA2 to 60% to the switching unit 104, so that the light is emitted. The diode unit 102 is enabled by the driving signal DR2 with a duty ratio of 60%, so that the illumination source emitted by the LED module 10 is the first source and the second source generated by the LED units 101 and 102. Since the light-emitting diode units 101 and 102 are all driven by a driving signal with a duty ratio of 60%, the brightness of the first light source and the second light source are all fully enabled by 60%.

Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T _R ), the principle after entering the time T _{3 is} the same as the above, the difference is only the driving signal DR1 generated by the pulse width modulators 3032, 3034. The duty ratio of DR2 is 40%, and the rest will not be described.

Based on the above, the driving signal DR1, DR2 of the present embodiment is generated by the plurality of pulse width modulators 3032 and 3034 to generate the driving signals DR1 and DR2 corresponding to the number of times of switching of the power switch 50. The duty ratios of the DR2s are not necessarily opposite to each other and correspond to each other, so that the illumination sources that can be mixed by the LED units 101 and 102 are more variable.

In addition, the present invention is not limited to counting the number of times the power switch 50 is turned on by detecting the voltage level of the power supply V _DD by the control unit 3031, and the voltage level of the power source V _DD can be supplied by the detecting unit 302. The control unit is the same as the control unit 3031, and the detecting unit 302 counts according to the detection result, and outputs a detection signal DS corresponding to the different number of times of the power switch 50 to the control unit 3031, so that the control unit 3031 knows the power switch 50. Turn on the time and output the corresponding signal.

In addition, the present invention not only limits the number of times the power switch 50 is turned on by the control unit 3031 or the detecting unit 302 as a basis for adjustment, but also directly adjusts the color temperature value and brightness of the light emitting diode module to the control unit 3031. instruction. Moreover, the LED module of the present invention is not limited to only one or two sets of light-emitting diode units, and may also be a complex array of light-emitting diode units.

In summary, the color-adjustable light-emitting diode lighting device of the present invention is based on the number of times the power switch is turned on as a command for adjusting the color temperature of the illumination source, separately enabling a group of light-emitting diode units, or simultaneously enabling multiple light-emitting diodes. The diode unit is such that the light sources output by the light emitting diode units are separately or mutually mixed as an illumination source. Alternatively, the duty ratio of the light-emitting diode units is adjusted by the pulse width modulator, and the brightness and color temperature of the light-emitting diode units are further adjusted and then mixed. The color temperature that makes the illumination source mixable is more variable.

However, the above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the variations, modifications, and modifications of the shapes, structures, features, and spirits described in the scope of the patent application. , should be included in the scope of the patent application of this creation.

This creative department is a novelty, progressive and available for industrial use. It should meet the requirements of patent applications stipulated in China's Patent Law. It is undoubtedly a new type of patent application, and the Prayer Council will grant patents as soon as possible. prayer.

10‧‧‧Lighting diode module

30‧‧‧Drive circuit

50‧‧‧Power switch

DR‧‧‧ drive signal

V _IN ‧‧‧Input power supply

V _DD ‧‧‧Power supply

Claims (15)

A color illuminating LED illuminating device comprising: a illuminating diode module for generating an illuminating light source, wherein the illuminating source has a color temperature value; and a driving circuit for receiving an input power source and The input power source generates at least one driving signal, and the driving signal is used to drive the LED module to generate the illumination source, and the driving circuit adjusts the driving signal to adjust the color temperature value of the illumination source. The illuminating diode device of claim 1, wherein the illuminating diode module comprises: a illuminating diode unit for generating the illuminating light source; and a switching unit coupled to the illuminating unit The diode unit is turned on according to the driving signal, so that the light emitting diode unit can generate the illumination source. The illuminating diode illuminating device of claim 1, wherein the driving circuit comprises: a voltage stabilizing unit that receives the input power and stabilizes the input power to generate a power supply to provide the illuminating The polar body module generates a power source required for the illumination source; a detection unit receives the input power source and the supply power source, and detects the level of the input power source, and generates a detection signal according to the level of the input power source And a control circuit that receives the power supply and the detection signal, and outputs the driving signal according to the power supply and the detection signal. The illuminating diode illuminating device of claim 3, further comprising: a power switch coupled between the input power source and the driving circuit for The user releases a control command to turn on, to transmit the input power to the voltage stabilizing unit, and the detecting unit performs detection. The illuminating diode illuminating device of claim 4, wherein the control circuit counts the number of times the power switch is turned on according to the detecting signal to correspondingly output the driving signal. The illuminating diode lighting device of claim 5, wherein when the power switch is turned off for more than one reset time, the power supply is lower than a threshold, and the control circuit recounts the power switch. The number of conduction times. The illuminating diode lighting device of claim 4, wherein the control circuit comprises: a control unit, receiving the power supply and the detection signal, and counting the number of times the power switch is turned on according to the detection signal And generating a color temperature adjustment signal; and a pulse width modulator, receiving the color temperature adjustment signal, and generating the driving signal according to the color temperature adjustment signal. The illuminating diode lighting device of claim 2, wherein the switching unit is a transistor. The illuminating diode lighting device of claim 3, wherein the voltage stabilizing unit is an inverter. The illuminating diode device of claim 1, wherein the illuminating diode module comprises: a first illuminating diode unit for generating a first light source, the first light source having a a first color temperature value; a first switching unit coupled to the first light emitting diode unit and turned on or off according to the driving circuit generating a first driving signal to adjust the first color temperature of the first light source value; a second light emitting diode unit for generating a second light source, wherein the second light source has a second color temperature value; and a second switching unit coupled to the second light emitting diode unit, and according to the driving circuit Generating a second driving signal to be turned on or off to adjust the second color temperature value of the second light source; wherein the LED module mixes the first color temperature value and the second color temperature value to generate the illumination The color temperature value of the light source. The illuminating diode illuminating device of claim 10, wherein the driving circuit comprises: a voltage stabilizing unit that receives the input power and stabilizes the input power to generate the power supply to provide the first illuminating The diode unit and the second LED unit generate power required by the first light source and the second light source; a detecting unit receives the input power and the power supply, and detects the input power And generating a detection signal according to the level of the input power; and a control circuit, receiving the supply power and the detection signal, and outputting the first driving signal and the first according to the supply power and the detection signal Second drive signal. The illuminating diode illuminating device of claim 11, wherein the control circuit counts the number of times the power switch is turned on according to the detecting signal to correspondingly output the first driving signal and the second driving signal. The illuminating diode lighting device of claim 12, wherein when the power switch is turned off for more than one reset time, the power supply is lower than a threshold, and the control circuit recounts the power switch. The number of conduction times. The illuminating diode lighting device of claim 11, wherein the control circuit comprises: a control unit that receives the power supply and the detection signal, and according to the detection signal Counting the number of times the power switch is turned on, and generating a color temperature adjustment signal; a pulse width modulator receiving the color temperature adjustment signal, and generating the first driving signal according to the color temperature adjustment signal; and an inverter receiving The first driving signal reverses the first driving signal to generate the second driving signal. The illuminating diode lighting device of claim 11, wherein the control circuit comprises: a control unit, receiving the power supply and the detection signal, and counting the conduction of a power switch according to the detection signal a first color temperature adjustment signal and a second color temperature adjustment signal; a first pulse width modulation device receives the first color temperature adjustment signal, and generates the first driving signal according to the first color temperature adjustment signal And a second pulse width modulator, receiving the second color temperature adjustment signal, and generating the second driving signal according to the second color temperature adjustment signal.