阅读说明：本技术 一种同时兼具亮度和色温调节的调光方法 (Dimming method capable of adjusting brightness and color temperature simultaneously ) 是由 陈雨麒 邓炳炎 于 2020-12-31 设计创作，主要内容包括：本技术公开一种同时兼具亮度和色温调节的调光方法,此方法是对正弦交流电的上波段和下波段分别进行斩波,对上波段斩波和对下波段斩波分别代表调光和色温调节,当然也可以调换定义,灯具内配备高色温LED发光二极管和低色温LED发光二极管,由高色温LED发光二极管和低色温LED发光二极管的不同光亮度调节得到不同色温和不同亮度的照明目的,本技术是根据按住前端按钮时间的长短来确认斩波位置,斩波位置越靠近波形前端零点,亮度被调低,色温被调低,斩波工作由可控硅斩波电路完成,这种调光方法成本低廉,操作简单。(The technology discloses a dimming method with brightness and color temperature adjustment, which is characterized in that the upper wave band and the lower wave band of sinusoidal alternating current are chopped respectively, the chopping of the upper wave band and the chopping of the lower wave band represent dimming and color temperature adjustment respectively, and certainly, the definition can be changed, a high color temperature LED and a low color temperature LED are arranged in a lamp, and the illumination purposes of different color temperatures and different brightness are obtained by adjusting the different brightness of the high color temperature LED and the low color temperature LED.)

1. A has luminance and color temperature to regulate the dimming method at the same time, this method is to chop the wave separately to the upper wave band and lower wave band of the sine wave, the chopping of the upper wave band represents and adjusts the light, the chopping of the lower wave band represents and adjusts the color temperature, can change and define, dispose high color temperature LED light-emitting diode and low color temperature LED light-emitting diode in the lamps and lanterns, the following method is that the chopping situation of the upper wave band represents and adjusts the light, the chopping situation of the lower wave band represents and adjusts the color temperature, the method step is as follows:

firstly, a signal receiving circuit acquires an instruction signal of an operator;

if the instruction signal of the operator is to chop the upper waveband, the chopper circuit chops the upper waveband of the sine wave, the farther the chopping position is away from the zero point of the front end, the brighter the light is needed by the operator, and the dimming of the light is performed on the contrary, the instruction signal is cancelled, the chopper circuit maintains the current chopping position to execute continuous chopping operation, and the brightness of the high-color-temperature LED and the brightness of the low-color-temperature LED are adjusted simultaneously during dimming;

if the operator changes the instruction signal, the color temperature is adjusted instead, at the moment, the chopper circuit performs lower-waveband chopping on the sine wave instead, the farther the chopping position is from the zero point of the front end, the higher the color temperature needs to be adjusted, and the lower the color temperature is, the instruction signal is cancelled, the chopper circuit maintains the current chopping position to execute continuous chopping operation, and when the color temperature is adjusted, the brightness of the high-color-temperature LED and the brightness of the low-color-temperature LED are respectively changed to achieve the change of the color temperature;

rectifying the chopped electric wave to convert the electric wave into direct current, and then respectively supplying the direct current with different current magnitudes to the high-color temperature LED and the low-color temperature LED according to the adjustment requirement, wherein different brightnesses or different color temperatures are formed by mixing the different brightnesses of the high-color temperature LED and the low-color temperature LED.

The technical field is as follows:

the invention relates to a dimming method capable of adjusting brightness and color temperature simultaneously.

Background art:

currently, LED lighting products are widely used in commercial lighting and home lighting, and the requirements of different users for LED lighting are different, and these requirements include brightness and color temperature. At present, most LED lighting products do not have the function of adjusting brightness and color temperature at the same time, and at present, two modes are available for adjusting brightness or color temperature.

The first is manual regulation, namely a color temperature regulating button is arranged on a lamp, before the lamp is installed, a user is consulted about what color temperature is needed, then the button is regulated to a corresponding position, the color temperature of an LED in the current lamp meets the user requirement, and the regulation of the brightness is realized through a brightness regulating button in the subsequent use process.

The second is to realize intelligent control by combining a chip with a mobile phone App, and the control mode needs high-technology network terminal hardware and needs to write special software, which causes quite high cost and is not beneficial to wide popularization.

The invention content is as follows:

the present invention is directed to overcome the above-mentioned drawbacks of the prior art, and to provide a dimming method with low cost and convenient adjustment, and both brightness and color temperature adjustment.

The invention aims to be realized by the following technical scheme: a has luminance and color temperature to regulate the dimming method at the same time, this method is to chop the wave separately to the upper wave band and lower wave band of the sine wave, the chopping of the upper wave band represents and adjusts the light, the chopping of the lower wave band represents and adjusts the color temperature, can change and define, dispose high color temperature LED light-emitting diode and low color temperature LED light-emitting diode in the lamps and lanterns, the following method is that the chopping situation of the upper wave band represents and adjusts the light, the chopping situation of the lower wave band represents and adjusts the color temperature, the method step is as follows:

firstly, a signal receiving circuit acquires an instruction signal of an operator;

if the instruction signal of the operator is to chop the upper waveband, the chopper circuit chops the upper waveband of the sine wave, the farther the chopping position is away from the zero point of the front end, the brighter the light is needed by the operator, and the dimming of the light is performed on the contrary, the instruction signal is cancelled, the chopper circuit maintains the current chopping position to execute continuous chopping operation, and the brightness of the high-color-temperature LED and the brightness of the low-color-temperature LED are adjusted simultaneously during dimming;

if the operator changes the instruction signal, the color temperature is adjusted instead, at the moment, the chopper circuit performs lower-waveband chopping on the sine wave instead, the farther the chopping position is from the zero point of the front end, the higher the color temperature needs to be adjusted, and the lower the color temperature is, the instruction signal is cancelled, the chopper circuit maintains the current chopping position to execute continuous chopping operation, and when the color temperature is adjusted, the brightness of the high-color-temperature LED and the brightness of the low-color-temperature LED are respectively changed to achieve the change of the color temperature;

rectifying the chopped electric wave to convert the electric wave into direct current, and then respectively supplying the direct current with different current magnitudes to the high-color temperature LED and the low-color temperature LED according to the adjustment requirement, wherein different brightnesses or different color temperatures are formed by mixing the different brightnesses of the high-color temperature LED and the low-color temperature LED.

After adopting this technical scheme, compare with prior art, this technical scheme has following advantage: the technology chops the upper wave band and the lower wave band of the sine wave respectively, the two chopping modes respectively represent dimming signals or color temperature adjusting signals, so that the control system can acquire intention information of an operator, the control system adjusts the brightness of the high-color-temperature LED and the low-color-temperature LED according to the intention of the operator to achieve the purposes of dimming and color temperature adjustment, and the chopping operation can be completed only by the aid of the silicon controlled chopper circuit, so that the chopping operation is low in cost and simple in operation.

Description of the drawings:

FIG. 1 is a waveform diagram of a sinusoidal AC power supply after being chopped in the upper band in accordance with the dimming method of the present invention;

FIG. 2 is a waveform diagram of a sine alternating current after being chopped in a lower wave band in the dimming method of the present invention;

fig. 3 is a data processing diagram of the dimming method of the present invention.

The specific implementation mode is as follows:

the present technique is further explained below.

The dimming method simultaneously has brightness and color temperature adjustment, and the method respectively chops the upper waveband and the lower waveband of sinusoidal alternating current, the chopping of the upper waveband represents dimming, the chopping of the lower waveband represents color temperature adjustment, and the definition can be changed, namely the chopping of the upper waveband represents color temperature adjustment, and the chopping of the lower waveband represents dimming. The lamp is internally provided with a high color temperature LED and a low color temperature LED, the following example method is that upper waveband chopping represents dimming, and lower waveband chopping represents color temperature adjustment, and the method comprises the following steps:

firstly, a signal receiving circuit obtains an operator instruction signal sent by a front-end button, for example, when the operator presses the front-end button, the initial pressing is a dimming mode, the brightness of an LED is brighter as the pressing time is longer (step II of a specific principle situation), then the operator releases the pressing to cancel the pressing, then the second pressing is changed into dimming, the longer the second pressing is, the brightness of the LED is darker, if the operator wants to further brighten, the second pressing needs to be cancelled, then the third pressing is executed, the dimming mode is changed back, and the like, and the operation is performed at intervals. If the operator continuously presses twice in a short time, the color temperature adjusting mode is changed, the color temperature is gradually increased when the front-end button is pressed for the first time, the front-end button is pressed for the second time after the first pressing is cancelled, the color temperature is gradually decreased, if the front-end button is pressed for the second time after the second pressing is cancelled, the color temperature is gradually increased when the front-end button is pressed for the third time, and the like;

secondly, if the instruction signal of the operator is to chop the upper wave band, the chopper circuit (i.e. the silicon controlled chopper circuit) chops the upper section of the sinusoidal alternating current, as shown in fig. 1. The chopping position of an upper waveband is confirmed according to the time of pressing a front-end button, the chopping position is closer to the zero point of the front end of the waveform as the pressing time is shorter, and the chopping position is farther from the zero point of the front end of the waveform as the pressing time is longer. The control system determines whether to adjust the brightness or the dimming according to the chopping position, wherein the brightness of the light is adjusted to be higher as the chopping position is closer to the zero point of the front end of the waveform, and the brightness of the light is adjusted to be higher as the chopping position is farther from the zero point of the front end of the waveform. After knowing the intention of an operator, the control system can simultaneously increase the power of the high-color-temperature LED and the low-color-temperature LED according to the proportion, so that the light brightness is gradually improved on the premise of not changing the color temperature.

The front-end button is pressed by an operator for the first time and is set to be in a brightness adjusting mode, the chopping position of the upper section of the sinusoidal wave is far away from the zero point of the front end of the waveform along with the longer pressing time, namely, the light needed by the operator is brighter, when the operator releases the front-end button, the chopper circuit keeps continuous chopping operation of the current chopping position subsequently, the control system continuously receives the waveform, the power of the high-color-temperature LED and the power of the low-color-temperature LED are controlled to be maintained in the current state, and finally the brightness of the light is maintained in the current state. When the operator cancels the first pressing and executes the second continuous pressing, the control system changes to the dimming mode, the control system gradually reduces the power of the high-color-temperature LED and the low-color-temperature LED at the same time, and the light is gradually dimmed. And when the operator cancels the pressing, the chopper circuit performs continuous chopping according to the current chopping position, so that the control system continuously obtains the waveform signal and maintains the current brightness. If the second pressing is cancelled and the third pressing is executed, the control system executes the operation of the first pressing and returns to the mode of adjusting the high brightness.

The color temperature is kept unchanged during dimming, so the current distributed to the high color temperature LED by the dimming process control system and the current distributed to the low color temperature LED are regulated according to a set proportion, and finally the brightness of the LED is changed under the condition that the color temperature is unchanged;

if the operator changes the instruction signal, namely double-clicking the front-end button, the control system changes the follow-up operation into color temperature adjustment after acquiring the signal, the chopper circuit performs chopping on the lower wave band of the sine alternating current, and as shown in fig. 2, the chopping position is determined according to the duration of pressing, and the principle is the same as that in the step II. We set the first press to the up-color mode. The front-end button is pressed for the first time, the chopping circuit cuts the wave-section chopping position under the sine wave away from the zero point of the front end of the wave form along with the longer pressing time, the control system can execute the operation of increasing the color temperature of the LED lamp, specifically, on the premise of not changing the total power of the lamp light, the power of the high-color-temperature LED is increased, the power of the low-color-temperature LED is decreased, but the total power added by the high-color-temperature LED and the low-color-temperature LED remains unchanged, so that the color temperature of the lamp light is gradually increased on the premise of keeping the brightness unchanged, when the operator releases the front-end button, the chopping circuit maintains the continuous chopping operation of the current chopping position, and the control system continuously receives the wave form, and the color temperature of the lamp light can be kept in the current state on the premise of not changing the brightness. When the operator performs a second press after canceling the first press, the control system changes to the reduced color temperature mode. When the front-end button is pressed for the second time, the chopping circuit cuts the wave length under the sine wave for a longer time, the farther the chopping position is away from the zero point of the front end of the wave shape, and the control system enables the color temperature of the LED lamp to be adjusted to be lower. If the front-end button is not pressed for the second time and the front-end button pressing operation is performed for the third time, the control system can execute the long-time pressing operation for the first time and change the mode back to the high color temperature adjusting mode. And so on.

The technology rectifies the chopped electric waves to convert the electric waves into direct currents, then supplies the direct currents with different current sizes to the high-color-temperature LED and the low-color-temperature LED respectively according to the adjustment requirement and the proportion, and mixes the different brightnesses of the high-color-temperature LED and the low-color-temperature LED to form different brightnesses or different color temperatures.

The present technique may be defined such that the upper band chopping represents color temperature adjustment and the lower band chopping represents dimming, and the above operations may be performed as well. The technology adopts the traditional silicon controlled chopper circuit to carry out upper wave band chopping and lower wave band chopping on sine alternating current, and chopping of different wave bands respectively represents dimming and color temperature adjustment, so that a control system can know the intention of an operator.

In the above embodiments, the front end button is a push button, and other signal obtaining manners may be adopted in the present technology, for example, a knob type button may be adopted, in an initial state, the knob is rotated clockwise to perform brightness increase, the counterclockwise knob performs brightness decrease, the knob is double-clicked to change the control mode to the color temperature adjustment mode, the knob is rotated clockwise to adjust the color temperature higher, the knob is rotated counterclockwise, and the color temperature is adjusted lower.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.