TWI578846B - Control system of light emitting device - Google Patents

Control system of light emitting device Download PDF

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Publication number
TWI578846B
TWI578846B TW104128616A TW104128616A TWI578846B TW I578846 B TWI578846 B TW I578846B TW 104128616 A TW104128616 A TW 104128616A TW 104128616 A TW104128616 A TW 104128616A TW I578846 B TWI578846 B TW I578846B
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control
light
pulse width
width modulation
unit
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TW104128616A
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TW201709771A (en
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Chih Min Liu
zhi-ru Hong
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Chih Min Liu
zhi-ru Hong
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Priority to TW104128616A priority Critical patent/TWI578846B/en
Priority to CN201610669398.7A priority patent/CN106488604B/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)

Description

發光裝置的控制系統Illumination device control system

本發明是有關於一種控制系統，特別是指一種發光裝置的控制系統。 The present invention relates to a control system, and more particularly to a control system for a light-emitting device.

習知應用於如水族缸、植物工廠等模擬日光的人工光源通常包含一個殼體、一個發光二極體單元、及一個控制裝置。該發光二極體單元及該控制裝置整合設置在該殼體內，並根據該控制裝置預先儲存的一個時間與亮度的設定表，及當時的時刻，控制該發光二極體單元發光的亮度。例如，每天的白天五點至下午五點要控制該發光二極體單元發光，每天的下午五點至隔天凌晨五點控制該發光二極體單元不發光。該習知的控制裝置是根據一個震盪器所產生的時鐘頻率，進而決定該當時的時刻。 Artificial light sources that are conventionally used for simulating daylight, such as aquariums, plant factories, etc., typically include a housing, a light emitting diode unit, and a control device. The light-emitting diode unit and the control device are integrated in the casing, and control the brightness of the light-emitting diode unit according to a time and brightness setting table stored in advance by the control device and the current time. For example, the light-emitting diode unit is controlled to be illuminated from 5 pm to 5 pm every day, and the light-emitting diode unit is controlled to emit no light every day from 5 pm to 5 am every other day. The conventional control device determines the current time based on the clock frequency generated by an oscillator.

然而，當該植物工廠的面積較大而需要裝設複數個該習知的人工光源時，該等人工光源的每一者是各自根據其所具有的震盪器決定各自的當時的時刻。由於每一個震盪器在先天上具有誤差，將會導致其所產生的時鐘頻率會有差異，進而使得每一個控制裝置所決定的當時的時刻存在誤差。尤其當該等人工光源的開啟時間較長時，各 個控制裝置所決定的當時的時刻的累積誤差將會變得更大，如此一來，該等人工光源的啟閉時間將會變得不同步，進而影響或干擾植物的生長。因此，如何提供一種同步啟閉的人工光源便成為一個重要的課題。 However, when the plant factory has a large area and a plurality of such conventional artificial light sources are required, each of the artificial light sources individually determines its respective current time according to the oscillator it has. Since each oscillator has an error in its innateness, it will cause a difference in the clock frequency generated by it, and thus there will be an error at the current time determined by each control device. Especially when the artificial light sources are turned on for a long time, The cumulative error at the current time determined by the control device will become larger, so that the opening and closing times of the artificial light sources will become asynchronous, thereby affecting or interfering with the growth of the plant. Therefore, how to provide an artificial light source that is synchronously opened and closed has become an important issue.

因此，本發明之目的，即在提供一種同步啟閉的發光裝置的控制系統。 Accordingly, it is an object of the present invention to provide a control system for a light-emitting device that is synchronously opened and closed.

於是，根據本發明之一觀點，提供一種發光裝置的控制系統，適用於控制N個發光裝置，並包含N個控制裝置。N是正整數。該N個控制裝置分別電連接該N個發光裝置，且適用於電連接一個交流電源。每一個控制裝置包括一個轉換單元、一個驅動單元、及一個控制單元。 Thus, in accordance with one aspect of the present invention, a control system for a light emitting device is provided that is adapted to control N light emitting devices and includes N control devices. N is a positive integer. The N control devices are electrically connected to the N light emitting devices, respectively, and are adapted to be electrically connected to an AC power source. Each control device includes a conversion unit, a drive unit, and a control unit.

該轉換單元電連接該交流電源以接收一個交流電壓輸入信號，並產生一個輸出信號，且該輸出信號指示該交流電壓輸入信號的頻率。 The conversion unit is electrically connected to the AC power source to receive an AC voltage input signal and generate an output signal, and the output signal indicates the frequency of the AC voltage input signal.

該驅動單元電連接對應的該發光裝置，並接收M個脈寬調變信號，且根據該M個脈寬調變信號控制對應的該發光裝置發光，M是正整數。 The driving unit is electrically connected to the corresponding light emitting device, and receives M pulse width modulation signals, and controls the corresponding light emitting device to emit light according to the M pulse width modulation signals, where M is a positive integer.

該控制單元包含M個目前時間與佔空比的對應關係式，並電連接該轉換單元以接收該輸出信號，且根據該輸出信號所指示的該交流電壓輸入信號的頻率，決定一個目前時間，再根據該目前時間及該M個對應關係式，分別決定該M個脈寬調變信號的佔空比，以產生該M個脈寬調變信號。該M個脈寬調變信號的頻率相同。 The control unit includes M current time and duty ratio correspondences, and is electrically connected to the conversion unit to receive the output signal, and determines a current time according to the frequency of the AC voltage input signal indicated by the output signal. And determining, according to the current time and the M correspondences, the duty ratios of the M pulse width modulation signals to generate the M pulse width modulation signals. The frequencies of the M pulse width modulation signals are the same.

在一些實施態樣中，每一個發光裝置包括M個電連接對應的該控制裝置的該驅動單元的發光二極體單元。其中，每一個控制裝置的該控制單元所產生的該M個脈寬調變信號的邏輯值在一第一邏輯值及一第二邏輯值之間變化。每一個控制裝置的該驅動單元根據該M個脈寬調變信號的邏輯值分別控制對應的該發光裝置的該M個發光二極體單元發光，當該脈寬調變信號的邏輯值等於該第一邏輯值時，該驅動單元控制該對應的發光二極體單元不發光，當該脈寬調變信號的邏輯值等於該第二邏輯值時，該驅動單元控制該對應的發光二極體單元發光。當M大於1時，該N個控制裝置操作在一第一模式及一第二模式之間，當該N個控制裝置操作在該第一模式時，每一個控制單元所產生的該M個脈寬調變信號的佔空比的和為100%，當該N個控制裝置操作在該第二模式時，每一個控制單元所產生的該M個脈寬調變信號的佔空比的和小於100%。 In some embodiments, each of the light emitting devices includes M light emitting diode units of the driving unit of the control device corresponding to the electrical connection. The logic value of the M pulse width modulation signals generated by the control unit of each control device varies between a first logic value and a second logic value. The driving unit of each control device respectively controls the illumination of the corresponding two LED units of the illumination device according to the logic values of the M pulse width modulation signals, when the logic value of the pulse width modulation signal is equal to the When the first logic value is used, the driving unit controls the corresponding LED unit to not emit light, and when the logic value of the pulse width modulation signal is equal to the second logic value, the driving unit controls the corresponding LED The unit emits light. When M is greater than 1, the N control devices operate between a first mode and a second mode, and when the N control devices operate in the first mode, the M pulses generated by each control unit The sum of the duty ratios of the wide modulation signals is 100%. When the N control devices operate in the second mode, the sum of the duty ratios of the M pulse width modulation signals generated by each control unit is less than 100%.

在一些實施態樣中，其中，每一個控制裝置的該轉換單元所產生的該輸出信號包含複數個連續的電壓脈衝，定義每一電壓脈衝的週期是P1，定義該交流電壓輸入信號的週期是P2，則P1/P2及P2/P1之其中一者是正整數。 In some implementations, the output signal generated by the conversion unit of each control device includes a plurality of consecutive voltage pulses, the period defining each voltage pulse is P1, and the period defining the AC voltage input signal is P2, one of P1/P2 and P2/P1 is a positive integer.

在一些實施態樣中，每一個發光裝置的該M個發光二極體單元的輸出功率相同，其中，該N個控制裝置所適用於電連接的該交流電源是一個市電。該交流電壓輸入信號的頻率為50赫茲及60赫茲之其中一種。其中，每一個控制裝置的該轉換單元同時接收到該交流電壓輸入信 號，且所產生的該輸出信號的該等電壓脈衝的週期與該交流電壓輸入信號的週期相同。 In some implementations, the output powers of the M light emitting diode units of each of the light emitting devices are the same, wherein the AC power source suitable for the electrical connection of the N control devices is a commercial power. The frequency of the AC voltage input signal is one of 50 Hz and 60 Hz. Wherein, the conversion unit of each control device simultaneously receives the AC voltage input signal And the period of the voltage pulses of the output signal generated is the same as the period of the alternating voltage input signal.

在一些實施態樣中，其中，每一個控制裝置的該控制單元包含一個計數器，以根據該輸出信號的頻率及邏輯值，計算該交流電壓輸出信號的該等電壓脈衝的個數，而產生一個計數值。該控制單元再根據該計數值決定該目前時間。 In some implementations, the control unit of each control device includes a counter to calculate the number of the voltage pulses of the AC voltage output signal according to the frequency and the logic value of the output signal, thereby generating a Count value. The control unit then determines the current time based on the count value.

或者在一些實施態樣中，其中，當M等於2且該N個控制裝置操作在該第一模式時，每一個控制裝置的該控制單元所產生的該二個脈寬調變信號的相位互補，即該二個脈寬調變信號之其中一者的邏輯值為該第一邏輯值時，該二個脈寬調變信號之其中另一者的邏輯值為該第二邏輯值。 Or in some implementations, wherein when M is equal to 2 and the N control devices operate in the first mode, the two pulse width modulated signals generated by the control unit of each control device are complementary to each other. When the logic value of one of the two pulse width modulation signals is the first logic value, the logic value of the other of the two pulse width modulation signals is the second logic value.

或者在一些實施態樣中，每一個發光裝置的該二個發光二極體單元分別是一種白色光的發光二極體及一種暖色光的發光二極體，其中，在每一個控制裝置的該M個對應關係式分別是每一天的時刻與佔空比的M個對應關係，且每一天在一第一時間區間內所對應的佔空比使得該控制裝置操作在該第一模式。每一天在一第二時間區間內所對應的佔空比使得該控制裝置操作在該第二模式。該第一時間區間及該第二時間區間不重疊。 Or in some implementations, the two light emitting diode units of each of the light emitting devices are a white light emitting diode and a warm color light emitting diode, wherein the control device is in each of the control devices. The M correspondences are respectively M correspondences of the time of each day and the duty ratio, and the duty ratio corresponding to each day in a first time interval causes the control device to operate in the first mode. The duty cycle corresponding to each day in a second time interval causes the control device to operate in the second mode. The first time interval and the second time interval do not overlap.

根據本發明之另一觀點，提供一種發光裝置的控制系統，適用於控制N個發光裝置，並包含N個控制裝置。N是正整數。該N個控制裝置分別電連接該N個發光 裝置，且適用於電連接一個交流電源。每一個控制裝置包括一個轉換單元、一個驅動單元、及一個控制單元。 According to another aspect of the present invention, a control system for a light emitting device is provided, which is adapted to control N light emitting devices and includes N control devices. N is a positive integer. The N control devices electrically connect the N illuminators The device is suitable for electrically connecting an AC power source. Each control device includes a conversion unit, a drive unit, and a control unit.

該轉換單元電連接該交流電源以接收一個交流電壓輸入信號，並產生一個輸出信號，且該輸出信號指示該交流電壓輸入信號的頻率。 The conversion unit is electrically connected to the AC power source to receive an AC voltage input signal and generate an output signal, and the output signal indicates the frequency of the AC voltage input signal.

該驅動單元電連接對應的該發光裝置，並接收M個控制信號，且根據該M個控制信號控制對應的該發光裝置發光，M是正整數。 The driving unit is electrically connected to the corresponding light emitting device, and receives M control signals, and controls corresponding light emitting devices to emit light according to the M control signals, where M is a positive integer.

該控制單元包含M個目前時間與控制信號的對應關係式，並電連接該轉換單元以接收該輸出信號，且根據該輸出信號所指示的該交流電壓輸入信號的頻率，決定一個目前時間，再根據該目前時間及該M個對應關係式，分別產生該M個控制信號。 The control unit includes a correspondence relationship between the M current time and the control signal, and is electrically connected to the conversion unit to receive the output signal, and determines a current time according to the frequency of the AC voltage input signal indicated by the output signal, and then determines a current time. The M control signals are generated according to the current time and the M correspondences.

本發明之功效是藉由該N個控制裝置都根據同一個交流電源所產生的該交流電壓輸入信號，以分別獲得相同的該等輸出信號，且該等輸出信號能指示該交流電壓輸入信號的頻率，再分別根據該等輸出信號產生該等控制信號以控制該N個發光裝置發光，而達到控制該等發光裝置同步啟閉的效果。 The effect of the present invention is that the N control devices respectively generate the same output signals according to the AC voltage input signals generated by the same AC power source, and the output signals can indicate the AC voltage input signals. The frequency is further generated according to the output signals to control the illumination of the N light-emitting devices, and the effect of controlling the synchronous opening and closing of the light-emitting devices is achieved.

1‧‧‧控制裝置 1‧‧‧Control device

11‧‧‧轉換單元 11‧‧‧Conversion unit

12‧‧‧驅動單元 12‧‧‧Drive unit

13‧‧‧控制單元 13‧‧‧Control unit

7‧‧‧開關 7‧‧‧ switch

8‧‧‧交流電源 8‧‧‧AC power supply

9‧‧‧發光裝置 9‧‧‧Lighting device

91‧‧‧第一發光二極體單元 91‧‧‧First LED unit

92‧‧‧第二發光二極體單元 92‧‧‧Second light-emitting diode unit

C1‧‧‧第一脈寬調變信號 C1‧‧‧First pulse width modulation signal

C2‧‧‧第二脈寬調變信號 C2‧‧‧Second pulse width modulation signal

V1‧‧‧跨壓 V1‧‧‧cross pressure

本發明之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是一方塊圖，說明本發明發光裝置的控制系統的一實施例； 圖2是一時序圖，說明該實施例之一脈寬調變信號的三種態樣；圖3是一時序圖，說明該實施例之一第一發光二極體的一輸出功率的百分比與時間的關係；及圖4是一時序圖，說明該實施例之一第二發光二極體的一輸出功率的百分比與時間的關係。 Other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a block diagram illustrating an embodiment of a control system for a light emitting device of the present invention; 2 is a timing diagram illustrating three aspects of a pulse width modulation signal of the embodiment; FIG. 3 is a timing diagram illustrating a percentage and time of an output power of the first light emitting diode of the embodiment. And FIG. 4 is a timing diagram illustrating the percentage of an output power of the second light-emitting diode of one of the embodiments versus time.

參閱圖1，本發明發光裝置的控制系統之實施例適用於控制N個發光裝置9，並包含N個控制裝置1。其中，N是正整數。該N個控制裝置1分別電連接該N個發光裝置9，且適用於電連接一個交流電源8。每一個控制裝置1包括一個轉換單元11、一個驅動單元12、及一個控制單元13。以下為方便說明起見，以N=2為例作說明。 Referring to Figure 1, an embodiment of a control system for a lighting device of the present invention is adapted to control N lighting devices 9 and includes N control devices 1. Where N is a positive integer. The N control devices 1 are electrically connected to the N light-emitting devices 9, respectively, and are adapted to be electrically connected to an AC power source 8. Each control device 1 includes a conversion unit 11, a drive unit 12, and a control unit 13. For convenience of explanation, the following is an example of N=2.

該交流電源8是一個市電，並輸出一個例如頻率為50赫茲或60赫茲且振幅為110伏特或220伏特的交流電壓輸入信號。此外，在本實施例中，該交流電源8是與一個開關7串聯，再與該二個控制裝置1並聯。而在其他實施例中，該交流電源8、該開關7、及該二個控制裝置1之間也可以具有其他的電連接方式，只要該開關7在導通時，能使該交流電源8同時供電給該二個控制裝置1即可，不在此限。 The AC power source 8 is a mains supply and outputs an AC voltage input signal having an amplitude of, for example, 50 Hz or 60 Hz and an amplitude of 110 volts or 220 volts. Further, in the present embodiment, the AC power source 8 is connected in series with a switch 7 and in parallel with the two control devices 1. In other embodiments, the AC power source 8, the switch 7, and the two control devices 1 may have other electrical connections. As long as the switch 7 is turned on, the AC power source 8 can be powered simultaneously. The two control devices 1 can be given, except for this.

每一個發光裝置9包括M個電連接對應的該控制裝置1的該驅動單元12的發光二極體單元，M是正整數。在本實施例中，每一個發光裝置9的該M個發光二極體單 元的最大輸出功率相同，例如都為10W。以下為方便說明起見，以M=2為例作說明，定義每一個發光裝置9的該二個發光二極體單元分別是一個第一發光二極體單元91及一個第二發光二極體單元92。該第一發光二極體單元91是一種白色光，即色溫為6000K左右的發光二極體(LED)。該第二發光二極體單元92是一種暖色光，即色溫為3000K左右的發光二極體。 Each of the light-emitting devices 9 includes M light-emitting diode units of the drive unit 12 of the control device 1 corresponding to the electrical connection, and M is a positive integer. In the embodiment, the M light-emitting diodes of each of the light-emitting devices 9 are single The maximum output power of the elements is the same, for example, both are 10W. For convenience of explanation, taking M=2 as an example, the two LED units defining each of the light-emitting devices 9 are a first light-emitting diode unit 91 and a second light-emitting diode. Unit 92. The first light emitting diode unit 91 is a white light, that is, a light emitting diode (LED) having a color temperature of about 6000K. The second LED unit 92 is a warm color light, that is, a light-emitting diode having a color temperature of about 3000K.

每一個控制裝置1的該轉換單元11電連接該交流電源8以接收該交流電壓輸入信號，並產生一個輸出信號，且該輸出信號指示該交流電壓輸入信號的頻率。 The conversion unit 11 of each control device 1 is electrically connected to the AC power source 8 to receive the AC voltage input signal, and generates an output signal, and the output signal indicates the frequency of the AC voltage input signal.

每一個控制裝置1的該驅動單元12電連接對應的該發光裝置9，並接收M個脈寬調變(Pulse Width Modultion；PWM)信號，且分別根據該M個脈寬調變信號控制對應的該發光裝置9的該M個發光二極體單元發光。承續前面的說明，M=2，定義該二個脈寬調變信號分別為第一脈寬調變信號C1及第二脈寬調變信號C2。也就是說，每一個控制裝置1的該驅動單元12根據該第一脈寬調變信號C1及第二脈寬調變信號C2，分別控制對應的該發光裝置9的該第一發光二極體單元91及該第二發光二極體單元92發光。 The driving unit 12 of each control device 1 is electrically connected to the corresponding lighting device 9 and receives M Pulse Width Modulation (PWM) signals, and respectively controls corresponding signals according to the M pulse width modulation signals. The M light emitting diode units of the light emitting device 9 emit light. According to the foregoing description, M=2, the two pulse width modulation signals are defined as a first pulse width modulation signal C1 and a second pulse width modulation signal C2, respectively. That is, the driving unit 12 of each control device 1 respectively controls the corresponding first LEDs of the illumination device 9 according to the first pulse width modulation signal C1 and the second pulse width modulation signal C2. The unit 91 and the second LED unit 92 emit light.

每一個控制裝置1的該控制單元13所產生的該M個脈寬調變信號的邏輯值在一第一邏輯值及一第二邏輯值之間變化。每一個控制裝置1的該驅動單元12根據該M個脈寬調變信號的邏輯值分別控制對應的該發光裝置9的 該M個發光二極體單元發光。當該脈寬調變信號的邏輯值等於該第一邏輯值時，該驅動單元12控制該對應的發光二極體單元不發光。當該脈寬調變信號的邏輯值等於該第二邏輯值時，該驅動單元12控制該對應的發光二極體單元發光。在本實施例中，該第一邏輯值為邏輯0，該第二邏輯值為邏輯1，而在其他實施例中，不在此限。 The logic values of the M pulse width modulation signals generated by the control unit 13 of each control device 1 vary between a first logic value and a second logic value. The driving unit 12 of each control device 1 respectively controls the corresponding lighting device 9 according to the logic values of the M pulse width modulation signals The M light emitting diode units emit light. When the logic value of the pulse width modulation signal is equal to the first logic value, the driving unit 12 controls the corresponding LED unit to not emit light. When the logic value of the pulse width modulation signal is equal to the second logic value, the driving unit 12 controls the corresponding light emitting diode unit to emit light. In this embodiment, the first logical value is a logical 0, and the second logical value is a logical one, and in other embodiments, this is not the limit.

每一個控制裝置1的該控制單元13包含M個目前時間與佔空比的對應關係式，並電連接對應的該轉換單元11以，接收該輸出信號，且根據該輸出信號所指示的該交流電壓輸入信號的頻率，決定一個目前時間，再根據該目前時間及該M個對應關係式，分別決定該M個脈寬調變信號的佔空比，以產生該M個脈寬調變信號。該M個脈寬調變信號的頻率相同。 The control unit 13 of each control device 1 includes M correspondences of current time and duty ratio, and electrically connects the corresponding conversion unit 11 to receive the output signal, and according to the communication indicated by the output signal The frequency of the voltage input signal determines a current time, and then determines the duty ratios of the M pulse width modulation signals according to the current time and the M correspondences to generate the M pulse width modulation signals. The frequencies of the M pulse width modulation signals are the same.

更具體的說，在本實施例中，當該開關7導通時，每一個控制裝置1的該轉換單元11同時接收到該交流電壓輸入信號，且所產生的該輸出信號包含複數個連續的電壓脈衝，定義每一電壓脈衝的週期是P1，定義該交流電壓輸入信號的週期是P2，則P1/P2及P2/P1之其中一者是正整數，也就是說P1是P2的整數倍，或者P2是P1的整數倍。在本實施例中，該電壓脈衝的週期與該交流電壓輸入信號的週期相同。舉例來說，該交流電壓輸入信號的頻率及振幅分別是60赫茲110伏特，該控制單元13是操作在1.2伏特的數位積體電路(Digital IC)所實施，則該轉換單元11所產生的該輸出信號例如為佔空比為50%且週期為1/60 秒的脈衝信號，且該脈衝信號在1.2伏特(邏輯1)及0伏特(邏輯0)之間變化，也就是說，在圖1中的跨壓V1的振幅為1.2伏特。每一個控制裝置1的該控制單元13包含一個計數器(Counter)(圖未示)，以根據該輸出信號的頻率及邏輯值，例如以邊緣觸發(Edge Trigger)或準位觸發(Level Trigger)，計算該交流電壓輸出信號的該等電壓脈衝的個數，而產生一個計數值，該控制單元13再根據該計數值決定該目前時間。承續前例來說明，該計數器例如由0開始計數，當該計數值等於60時，表示在計數值由0到60所經過的時間是1秒。 More specifically, in the present embodiment, when the switch 7 is turned on, the conversion unit 11 of each control device 1 simultaneously receives the AC voltage input signal, and the generated output signal includes a plurality of consecutive voltages. Pulse, the period defining each voltage pulse is P1, and the period defining the AC voltage input signal is P2, then one of P1/P2 and P2/P1 is a positive integer, that is, P1 is an integer multiple of P2, or P2 Is an integer multiple of P1. In this embodiment, the period of the voltage pulse is the same as the period of the alternating voltage input signal. For example, the frequency and amplitude of the AC voltage input signal are 110 Hz at 60 Hz, respectively. The control unit 13 is implemented by a digital IC (1.2 volts), and the conversion unit 11 generates the same. The output signal is, for example, a duty ratio of 50% and a period of 1/60. A pulse signal of two seconds, and the pulse signal varies between 1.2 volts (logic 1) and 0 volts (logic 0), that is, the amplitude of the voltage across the V1 in FIG. 1 is 1.2 volts. The control unit 13 of each control device 1 includes a counter (not shown) to be based on the frequency and logic value of the output signal, for example, Edge Trigger or Level Trigger. The number of the voltage pulses of the AC voltage output signal is calculated to generate a count value, and the control unit 13 determines the current time based on the count value. As described in the previous example, the counter starts counting, for example, from 0. When the count value is equal to 60, it means that the time elapsed from 0 to 60 is 1 second.

換句話說，每一個控制裝置1的該轉換單元11能夠同時接收到該交流電壓輸入信號，每一個控制裝置1的該控制單元13再根據該輸出信號，決定該目前時間，且每一個控制裝置1的該控制單元13所決定的該目前時間並不會有誤差，以達到控制該N個發光裝置9，也就是複數個發光裝置9同時開啟或關閉，而能克服先前技術所具有的問題。另外，要補充說明的是：舉例來說，每一個控制裝置1都能根據該交流電壓輸入信號而在各個計數器獲得相同的計數值，再利用一個相同的初始時間，例如該開關選擇在22點開啟，則每一個控制裝置1也都設定該相同的初始時間，22點，進而使得每一個控制裝置1能夠獲得相同的該目前時間。還要特別補充說明的是：當N等於1時，雖然沒有複數個發光裝置9同時啟閉的效果，但是該控制裝置1能根據該交流電壓輸入信號的頻率，而獲得正確的 該目前時間，進而控制該單一個發光裝置9能在正確無誤的時間點開啟或關閉。 In other words, the conversion unit 11 of each control device 1 can simultaneously receive the AC voltage input signal, and the control unit 13 of each control device 1 determines the current time according to the output signal, and each control device The current time determined by the control unit 13 of 1 does not have an error to control the N light-emitting devices 9, that is, the plurality of light-emitting devices 9 are simultaneously turned on or off, thereby overcoming the problems of the prior art. In addition, it should be added that, for example, each control device 1 can obtain the same count value in each counter according to the AC voltage input signal, and then use the same initial time, for example, the switch selects at 22 o'clock. When turned on, each control device 1 also sets the same initial time, 22 points, so that each control device 1 can obtain the same current time. It should be particularly noted that when N is equal to 1, although there is no effect of simultaneously turning on and off a plurality of light-emitting devices 9, the control device 1 can obtain the correct frequency according to the frequency of the AC voltage input signal. The current time, in turn, controls the single illumination device 9 to be turned "on" or "off" at the correct time.

此外，當M大於1時，該N個控制裝置1操作在一第一模式及一第二模式之間。當該N個控制裝置1操作在該第一模式時，每一個控制單元13所產生的該M個脈寬調變信號的佔空比的和為100%。當該N個控制裝置1操作在該第二模式時，每一個控制單元13所產生的該M個脈寬調變信號的佔空比的和小於100%。更具體的說，當該N個控制裝置1操作在該第一模式時，雖然該M個發光二極體單元各自根據該M個脈寬調變信號的控制而決定其輸出功率，即每一個發光二極體單元的亮度不同，但每一個發光裝置9的總輸出功率相等，即每一個發光裝置9的亮度都相同，例如都等於每一個發光二極體單元的最大輸出功率。相對地，當該N個控制裝置1操作在該第二模式時，則每一個發光裝置9的總輸出功率會小於該最大輸出功率。 Further, when M is greater than 1, the N control devices 1 operate between a first mode and a second mode. When the N control devices 1 operate in the first mode, the sum of the duty ratios of the M pulse width modulation signals generated by each control unit 13 is 100%. When the N control devices 1 operate in the second mode, the sum of the duty ratios of the M pulse width modulation signals generated by each control unit 13 is less than 100%. More specifically, when the N control devices 1 operate in the first mode, the M light emitting diode units each determine the output power according to the control of the M pulse width modulation signals, that is, each The brightness of the light-emitting diode unit is different, but the total output power of each of the light-emitting devices 9 is equal, that is, the brightness of each of the light-emitting devices 9 is the same, for example, equal to the maximum output power of each of the light-emitting diode units. In contrast, when the N control devices 1 operate in the second mode, the total output power of each of the light-emitting devices 9 may be less than the maximum output power.

承續前例，以N=M=2為例作說明。更具體的說，當M=2且該二個控制裝置1操作在該第一模式時，每一個控制裝置1的該控制單元13所產生的該二個脈寬調變信號的相位互補，即該二個脈寬調變信號之其中一者的邏輯值為該第一邏輯值時，該二個脈寬調變信號之其中另一者的邏輯值為該第二邏輯值。 In the previous example, N=M=2 is taken as an example. More specifically, when M=2 and the two control devices 1 operate in the first mode, the phases of the two pulse width modulation signals generated by the control unit 13 of each control device 1 are complementary, that is, When the logic value of one of the two pulse width modulation signals is the first logic value, the logic value of the other of the two pulse width modulation signals is the second logic value.

再參閱圖2，舉例來說，若該二個控制裝置1操作在該第一模式，且該第一脈寬調變信號C1如圖2的第一態樣，且該第二脈寬調變信號C2如圖2的第二態樣。此 時，(t2-t0)、(t4-t2)、及(t6-t4)都等於該第一脈寬調變信號C1及該第二脈寬調變信號C2的週期，且該第一脈寬調變信號C1的佔空比為(t1-t0)/(t2-t0)、(t3-t2)/(t4-t2)、及(t5-t4)/(t6-t4)，該第二脈寬調變信號C2的佔空比為(t2-t1)/(t2-t0)、(t4-t3)/(t4-t2)、及(t6-t5)/(t6-t4)，該二個脈寬調變信號的佔空比的和為100%。若該二個控制裝置1操作在該第二模式，且該第一脈寬調變信號C1如圖2的第一態樣，且該第二脈寬調變信號C2如圖2的第三態樣。此時，該二個脈寬調變信號的佔空比的和小於100%。 Referring to FIG. 2, for example, if the two control devices 1 are operated in the first mode, and the first pulse width modulation signal C1 is in the first aspect of FIG. 2, and the second pulse width modulation Signal C2 is as in the second aspect of FIG. this When (t2-t0), (t4-t2), and (t6-t4) are equal to the period of the first pulse width modulation signal C1 and the second pulse width modulation signal C2, and the first pulse width The duty ratio of the modulation signal C1 is (t1-t0)/(t2-t0), (t3-t2)/(t4-t2), and (t5-t4)/(t6-t4), the second pulse The duty ratio of the wide modulation signal C2 is (t2-t1)/(t2-t0), (t4-t3)/(t4-t2), and (t6-t5)/(t6-t4), the two The sum of the duty ratios of the pulse width modulation signals is 100%. If the two control devices 1 are operated in the second mode, and the first pulse width modulation signal C1 is in the first aspect of FIG. 2, and the second pulse width modulation signal C2 is in the third state of FIG. kind. At this time, the sum of the duty ratios of the two pulse width modulation signals is less than 100%.

參閱圖1，在每一個控制裝置1的該二個對應關係式分別是每一天的時刻與佔空比的二個對應關係，且每一天在一第一時間區間內所對應的佔空比使得該控制裝置1操作在該第一模式。每一天在一第二時間區間內所對應的佔空比使得該控制裝置1操作在該第二模式。該第一時間區間及該第二時間區間不重疊。 Referring to FIG. 1, the two correspondences in each control device 1 are respectively two correspondences of the time of each day and the duty ratio, and the duty ratio corresponding to each day in a first time interval makes The control device 1 operates in the first mode. The duty cycle corresponding to each day in a second time interval causes the control device 1 to operate in the second mode. The first time interval and the second time interval do not overlap.

承續前例，以N=M=2為例作說明。再參閱圖3，圖3是該第一發光二極體單元91的一輸出功率與時間的對應關係，其中，橫軸表示時間，縱軸表示該第一發光二極體單元91的輸出功率相對於最大輸出功率的百分比，例如若該第一發光二極體單元91的最大輸出功率為10W，則在9點所對應的百分比為50%，表示在9點的輸出功率為5W。相似地，再參閱圖4，圖4是該第二發光二極體單元92的一輸出功率與時間的對應關係。以圖3與圖4來說，該第一時間區間是在5點至18點之間，該第二時間區間是在0 點至5點及18點至24點之間。在4點至7點及17點至20點之間，每一個控制裝置1控制對應的該第二發光二極體單元92發出不同亮度的暖色光，例如在4點30分，該第一脈寬調變信號C1的佔空比為0%，該第二脈寬調變信號C2的佔空比為50%，該第二發光二極體單元92的輸出功率為50%；在10點至14點之間，每一個控制裝置1控制對應的該第一發光二極體單元91發出不同亮度的白色光，例如在12點，該第一脈寬調變信號C1的佔空比為100%，該第二脈寬調變信號C2的佔空比為0%，該第一發光二極體單元91的輸出功率為100%；在7點至10點與14點至17點之間，每一個控制裝置1控制對應的該第一發光二極體單元91及該第二發光二極體單元92發出不同亮度的白色光及暖色光，例如在8點30分，該第一脈寬調變信號C1的佔空比為50%，該第二脈寬調變信號C2的佔空比為50%，該第一發光二極體單元91及該第二發光二極體單元92的輸出功率都為50%；進而實現一個模擬太陽光的人工光源。 In the previous example, N=M=2 is taken as an example. Referring to FIG. 3 again, FIG. 3 is a corresponding relationship between output power and time of the first LED unit 91. The horizontal axis represents time and the vertical axis represents relative output power of the first LED unit 91. The percentage of the maximum output power, for example, if the maximum output power of the first LED unit 91 is 10 W, the percentage corresponding to 9 points is 50%, indicating that the output power at 9 points is 5 W. Similarly, referring to FIG. 4, FIG. 4 is a corresponding relationship between an output power of the second LED unit 92 and time. In FIG. 3 and FIG. 4, the first time interval is between 5 and 18, and the second time interval is 0. Point to 5 o'clock and between 18 o'clock and 24 o'clock. Between 4 o'clock and 7 o'clock and between 17 o'clock and 20 o'clock, each control device 1 controls the corresponding second light-emitting diode unit 92 to emit warm light of different brightness, for example, at 4:30, the first pulse The duty ratio of the wide modulation signal C1 is 0%, the duty ratio of the second pulse width modulation signal C2 is 50%, and the output power of the second LED unit 92 is 50%; Between 14 o'clock, each control device 1 controls the corresponding first LED unit 91 to emit white light of different brightness. For example, at 12 o'clock, the duty ratio of the first pulse width modulation signal C1 is 100%. The duty ratio of the second pulse width modulation signal C2 is 0%, and the output power of the first light emitting diode unit 91 is 100%; between 7:00 and 10:00 and between 14:00 and 17:00, each A control device 1 controls the corresponding first light-emitting diode unit 91 and the second light-emitting diode unit 92 to emit white light of different brightness and warm color light, for example, at 8:30, the first pulse width modulation The duty ratio of the signal C1 is 50%, the duty ratio of the second pulse width modulation signal C2 is 50%, and the first LED unit 91 and the second LED unit 92 are It has a power of 50%; artificial light sources so as to realize a simulated sunlight.

要特別補充說明的是：每一個控制單元13的該M個目前時間與佔空比的對應關係式可利用一預先儲存的數學運算式，以軟體運算的方式獲得對應的佔空比，或者，每一個控制單元13也可以預先儲存一對照表，以查找數值的方式獲得該對應的佔空比，不在此限。此外，在本實施例中，M=2，且該發光裝置9的該第一發光二極體單元91及該第二發光二極體單元92分別是一種白色光及暖色光的發光二極體。而在其他實施例中，M也可以為其他複數， 例如M=3，該發光裝置9包括三種發光二極體，如紅色、藍色、及綠色發光二極體，不在此限。此外，在本實施例中，該驅動單元12是根據脈寬調變信號的佔空比來控制發光裝置9發光或不發光。而在其他實施例中，該驅動單元12也可以是根據其他種類的控制信號，如類比式的控制信號，來控制該發光裝置9發光或不發光，也能達成本發明之同步啟閉的功效。 It should be particularly noted that the correspondence between the M current time and the duty ratio of each control unit 13 can obtain a corresponding duty ratio in a software operation manner by using a pre-stored mathematical operation, or Each control unit 13 may also store a comparison table in advance, and obtain the corresponding duty ratio in a manner of finding a value, which is not limited thereto. In addition, in the embodiment, M=2, and the first LED unit 91 and the second LED unit 92 of the illuminating device 9 are respectively a white light and a warm color light emitting diode. . In other embodiments, M can also be other plurals. For example, M=3, the light-emitting device 9 includes three kinds of light-emitting diodes, such as red, blue, and green light-emitting diodes, and is not limited thereto. Further, in the present embodiment, the driving unit 12 controls the light-emitting device 9 to emit light or not according to the duty ratio of the pulse width modulation signal. In other embodiments, the driving unit 12 may also control the light-emitting device 9 to emit light or not according to other kinds of control signals, such as analog control signals, and also achieve the synchronous opening and closing effect of the present invention. .

綜上所述，藉由該N個控制裝置1都根據同一個交流電源8所產生的該交流電壓輸入信號，以獲得相同的該交流電壓輸入信號的頻率，進而獲得相同的該目前時間，以達到控制該N個發光裝置9同步啟閉的效果。此外，再藉由該N個控制裝置1的該控制單元13根據該目前時間及該M個的對應關係式，分別決定該M個脈寬調變信號，以控制對應的該M個發光二極體單元的發光亮度，故確實能達成本發明之目的。 In summary, the N control devices 1 are all based on the AC voltage input signal generated by the same AC power source 8 to obtain the same frequency of the AC voltage input signal, thereby obtaining the same current time. The effect of controlling the synchronous opening and closing of the N light-emitting devices 9 is achieved. In addition, the control unit 13 of the N control devices 1 respectively determines the M pulse width modulation signals according to the current time and the M correspondences to control the corresponding M light emitting diodes. The luminance of the body unit is such that the object of the present invention can be achieved.

惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。 However, the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made by the scope of the invention and the contents of the patent specification, All remain within the scope of the invention patent.

1‧‧‧控制裝置 1‧‧‧Control device

11‧‧‧轉換單元 11‧‧‧Conversion unit

12‧‧‧驅動單元 12‧‧‧Drive unit

13‧‧‧控制單元 13‧‧‧Control unit

7‧‧‧開關 7‧‧‧ switch

8‧‧‧交流電源 8‧‧‧AC power supply

9‧‧‧發光裝置 9‧‧‧Lighting device

91‧‧‧第一發光二極體 91‧‧‧First Light Emitting Diode

92‧‧‧第二發光二極體 92‧‧‧Second light-emitting diode

C1‧‧‧第一脈寬調變信號 C1‧‧‧First pulse width modulation signal

C2‧‧‧第二脈寬調變信號 C2‧‧‧Second pulse width modulation signal

V1‧‧‧跨壓 V1‧‧‧cross pressure

Claims (8)

一種發光裝置的控制系統，適用於控制N個發光裝置，並包含：N個控制裝置，分別電連接該N個發光裝置，且適用於電連接一個交流電源，N是正整數，每一個控制裝置包括一個轉換單元，電連接該交流電源以接收一個交流電壓輸入信號，並產生一個輸出信號，且該輸出信號指示該交流電壓輸入信號的頻率，一個驅動單元，電連接對應的該發光裝置，並接收M個脈寬調變信號，且根據該M個脈寬調變信號控制對應的該發光裝置發光，M是正整數，及一個控制單元，包含M個目前時間與佔空比的對應關係式，並電連接該轉換單元以接收該輸出信號，且根據該輸出信號所指示的該交流電壓輸入信號的頻率，決定一個目前時間，再根據該目前時間及該M個對應關係式，分別決定該M個脈寬調變信號的佔空比，以產生該M個脈寬調變信號，該M個脈寬調變信號的頻率相同。 A control system for a light-emitting device is adapted to control N light-emitting devices, and comprises: N control devices electrically connected to the N light-emitting devices respectively, and is adapted to electrically connect an AC power source, N is a positive integer, and each control device comprises a conversion unit electrically connecting the alternating current power source to receive an alternating voltage input signal and generating an output signal, wherein the output signal indicates a frequency of the alternating voltage input signal, a driving unit electrically connecting the corresponding light emitting device, and receiving M pulse width modulation signals, and controlling corresponding illumination of the illumination device according to the M pulse width modulation signals, M is a positive integer, and a control unit, comprising a correspondence relationship between M current time and duty ratio, and Electrically connecting the conversion unit to receive the output signal, and determining a current time according to the frequency of the AC voltage input signal indicated by the output signal, and determining the M according to the current time and the M correspondences respectively Pulse width modulation signal duty cycle to generate the M pulse width modulation signals, the M pulse width modulation signals have the same frequency 如請求項1所述的發光裝置的控制系統，每一個發光裝置包括M個電連接對應的該控制裝置的該驅動單元的發光二極體單元，其中，每一個控制裝置的該控制單元所產生的該M個脈寬調變信號的邏輯值在一第一邏輯值及一第二邏輯值 之間變化，每一個控制裝置的該驅動單元根據該M個脈寬調變信號的邏輯值分別控制對應的該發光裝置的該M個發光二極體單元發光，當該脈寬調變信號的邏輯值等於該第一邏輯值時，該驅動單元控制該對應的發光二極體單元不發光，當該脈寬調變信號的邏輯值等於該第二邏輯值時，該驅動單元控制該對應的發光二極體單元發光，當M大於1時，該N個控制裝置操作在一第一模式及一第二模式之間，當該N個控制裝置操作在該第一模式時，每一個控制單元所產生的該M個脈寬調變信號的佔空比的和為100%，當該N個控制裝置操作在該第二模式時，每一個控制單元所產生的該M個脈寬調變信號的佔空比的和小於100%。 The control system of the light-emitting device according to claim 1, wherein each of the light-emitting devices comprises M light-emitting diode units of the drive unit of the control device corresponding to the control device, wherein the control unit of each control device generates The logic values of the M pulse width modulation signals are at a first logic value and a second logic value Between the changes, the driving unit of each control device respectively controls the corresponding light emitting diode units of the light emitting device according to the logic values of the M pulse width modulation signals, when the pulse width modulation signal is When the logic value is equal to the first logic value, the driving unit controls the corresponding LED unit to not emit light, and when the logic value of the pulse width modulation signal is equal to the second logic value, the driving unit controls the corresponding The light emitting diode unit emits light. When M is greater than 1, the N control devices operate between a first mode and a second mode. When the N control devices operate in the first mode, each control unit The sum of the duty ratios of the M pulse width modulation signals generated is 100%, and the M pulse width modulation signals generated by each control unit when the N control devices operate in the second mode The sum of the duty cycles is less than 100%. 如請求項2所述的發光裝置的控制系統，其中，每一個控制裝置的該轉換單元所產生的該輸出信號包含複數個連續的電壓脈衝，定義每一電壓脈衝的週期是P1，定義該交流電壓輸入信號的週期是P2，則P1/P2及P2/P1之其中一者是正整數。 The control system of the illuminating device of claim 2, wherein the output signal generated by the converting unit of each control device comprises a plurality of consecutive voltage pulses, the period of each voltage pulse is defined as P1, and the alternating current is defined. The period of the voltage input signal is P2, and one of P1/P2 and P2/P1 is a positive integer. 如請求項3所述的發光裝置的控制系統，每一個發光裝置的該M個發光二極體單元的輸出功率相同，其中，該N個控制裝置所適用於電連接的該交流電源是一個市電，該交流電壓輸入信號的頻率為50赫茲及60赫茲之其中一種，其中，每一個控制裝置的該轉換單元同時接 收到該交流電壓輸入信號，且所產生的該輸出信號的該等電壓脈衝的週期與該交流電壓輸入信號的週期相同。 The control system of the illuminating device of claim 3, wherein the output power of the M light emitting diode units of each illuminating device is the same, wherein the AC power source suitable for the electrical connection of the N control devices is a commercial power The frequency of the AC voltage input signal is one of 50 Hz and 60 Hz, wherein the conversion unit of each control device is connected at the same time The AC voltage input signal is received, and the period of the voltage pulses of the generated output signal is the same as the period of the AC voltage input signal. 如請求項4所述的發光裝置的控制系統，其中，每一個控制裝置的該控制單元包含一個計數器，以根據該輸出信號的頻率及邏輯值，計算該交流電壓輸出信號的該等電壓脈衝的個數，而產生一個計數值，該控制單元再根據該計數值決定該目前時間。 The control system of the illuminating device of claim 4, wherein the control unit of each control device includes a counter for calculating the voltage pulses of the AC voltage output signal according to the frequency and the logic value of the output signal. The number is generated to generate a count value, and the control unit determines the current time based on the count value. 如請求項2所述的發光裝置的控制系統，其中，當M等於2且該N個控制裝置操作在該第一模式時，每一個控制裝置的該控制單元所產生的該二個脈寬調變信號的相位互補，即該二個脈寬調變信號之其中一者的邏輯值為該第一邏輯值時，該二個脈寬調變信號之其中另一者的邏輯值為該第二邏輯值。 The control system of the light-emitting device of claim 2, wherein when the M is equal to 2 and the N control devices operate in the first mode, the two pulse width modulations generated by the control unit of each control device The phase of the variable signal is complementary, that is, when the logical value of one of the two pulse width modulated signals is the first logic value, the logical value of the other of the two pulse width modulated signals is the second Logical value. 如請求項6所述的發光裝置的控制系統，每一個發光裝置的該二個發光二極體單元分別是一種白色光的發光二極體及一種暖色光的發光二極體，其中，在每一個控制裝置的該M個對應關係式分別是每一天的時刻與佔空比的M個對應關係，且每一天在一第一時間區間內所對應的佔空比使得該控制裝置操作在該第一模式，每一天在一第二時間區間內所對應的佔空比使得該控制裝置操作在該第二模式，該第一時間區間及該第二時間區間不重疊。 The control system of the illuminating device of claim 6, wherein the two illuminating diode units of each illuminating device are respectively a white light emitting diode and a warm color light emitting diode, wherein each The M correspondences of a control device are respectively M correspondences of the time of each day and the duty ratio, and the duty ratio corresponding to each day in a first time interval causes the control device to operate at the first In one mode, the duty cycle corresponding to each day in a second time interval causes the control device to operate in the second mode, the first time interval and the second time interval not overlapping. 一種發光裝置的控制系統，適用於控制N個發光裝置，並包含： N個控制裝置，分別電連接該N個發光裝置，且適用於電連接一個交流電源，N是正整數，每一個控制裝置包括一個轉換單元，電連接該交流電源以接收一個交流電壓輸入信號，並產生一個輸出信號，且該輸出信號指示該交流電壓輸入信號的頻率，一個驅動單元，電連接對應的該發光裝置，並接收M個控制信號，且根據該M個控制信號控制對應的該發光裝置發光，M是正整數，及一個控制單元，包含M個目前時間與控制信號的對應關係式，並電連接該轉換單元以接收該輸出信號，且根據該輸出信號所指示的該交流電壓輸入信號的頻率，決定一個目前時間，再根據該目前時間及該M個對應關係式，分別產生該M個控制信號。 A control system for a light-emitting device, suitable for controlling N light-emitting devices, and comprising: N control devices are respectively electrically connected to the N light-emitting devices and are adapted to be electrically connected to an AC power source, N is a positive integer, and each control device comprises a conversion unit electrically connected to the AC power source to receive an AC voltage input signal, and Generating an output signal, and the output signal indicates the frequency of the AC voltage input signal, a driving unit electrically connecting the corresponding light emitting device, and receiving M control signals, and controlling the corresponding light emitting device according to the M control signals Illumination, M is a positive integer, and a control unit, comprising a correspondence between the M current time and the control signal, and electrically connecting the conversion unit to receive the output signal, and according to the AC voltage input signal indicated by the output signal The frequency determines a current time, and then generates the M control signals according to the current time and the M correspondences.
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