201237912 六、發明說明： 【發明所屬之技術領域】 有關於—種具有繼電器的定時器。 【先珂技術】 -專利文獻1揭不—種定時器’該定時器具有：對來自 電原之交流電流進行整流的整流二極體、對從整流 二極體輸出的電流進行平滑處理的平滑電容器、輸入藉 由平，電容器所平滑之電流的繼電器線圈、以及使輸入 *、電器線圈之電流導通（〇n)或斷開（〇ff)的繼電器之驅動 用電曰B體。專利文獻！係謀求定時器之零件數的縮減。 [專利文獻1 ]特許第3 6 6 1 2 7 2號公報 【發明内容】 [發明欲解決的課題] 本發明要求進一步縮減定時器之零件數。因此，本 發明的目的在於進一步縮減具有繼電器之定時器的零件 數。 [解決課題的手段] 本發明之定時器係具備：繼電器部，其係切換是否 將電力或信號供應至負载；以及控制部，係依來自交流 電源的電力而動作，控制繼電器部之導通或 器部係具有：半波整流電路，其係對來自交=源= 流電流進行半波整流；AC繼電器，其中係輸人經半波整 流電路進行半波整流之脈動流；以及開關電路，其係使 輸入AC繼電器之脈動流導通或斷開；控制部係在將電力 或信號供應至負載的期間，為了對AC繼電器進行pwM控 201237912 制而將驅動信號輸出至開關電路。 電路時器之—個實施例中，亦可為半波整流 電路將未藉由平滑電路平滑的脈動流輸入AC繼電薄。 係2發明之定時器之-個實施例中，亦可為AC繼電器 ，、有 '繼電器線圈’其係依脈動流 極線圈，其係依主磁 、產生，蔽 ..m 逋使相位與主磁通錯開之副磁通產 Ϊ二：接點，其係與負―以及可動接點， /、係依主磁通及副磁；盡& 連接。 、引力而與前述固定接點電性 本發明之定時器之一個實施例中，亦可為 備與繼電器線圈並聯、吸枚在繼電器線圈所產生之反； 動勢的二極體。 国所屋生之反電 在將雷：月之疋時盗之一個實施例中’亦可為控制部係 =力或信號供應至負載的期間，以輸出反覆門 期的刖述驅動信號之方式，對 周 在將門關带故道 對AC繼電益進行PWM控制： 开關電路導通直到從Ac繼電 到基準雷户檑夕尨 —# # 』之電机值達 , 复’在基準斷開期間斷開開關電路。 芙於i A月之定時器之一個實施例中，亦可為控制呷传 據交流電之額定電壓而定之基準電流值及基；： 4期間，從而對AC繼電器進行pwM控制。 斷 :發明之定時器之一個實施例中，亦可為進 :美：體广系收納控制部、保持控制部的基板、：具 過：：：：控制部電性連接的繼電器部： :係具有將來自交流電源之電力輸出 ：： W之端子、及電性連接繼電器部與負載的端；。與控 201237912 此外，上述發明之概要並非列舉了本發明全部必要 的特徵者。又’此專特徵群之次組合也能構成發明。 【實施方式】 [用以實施發明的形態] 以下透過發明之實施例來說明本發明，惟以下的實 施例並非係申請專利範圍所涉及之發明的限制性者。又 ’實施例中所說明之特徵的組合的全部不限制為皆是解 決發明之手段的必要特徵。 第1圖係顯示本實施例之定時器200之電路構造的圖 。定時器200係所謂的繼電器内建型固態限時繼電器，具 備：繼電器部20、控制部1 〇、DIP開關30、及脈衝產生部 40 〇 繼電器部20切換是否對連接於定時器2〇〇之負載供 應電力或彳§號。控制部1 〇依來自交流電源5 〇的電力而動 作，控制繼電器部20的導通或斷開。 控制部10係例如IC晶片’用以於對連接於定時器2 〇 〇 之負載供應電力或信號的期間對AC繼電器1〇〇進行PWM 控制而對電晶體T R1輸出驅動信號。 繼電器部20具備：連接成串聯的二極體D1、aC繼電 器100、及電晶體TR1 ^而且，繼電器部2〇具備與AC繼電 器100並聯的二極體D2e AC繼電器1〇〇為半波整流電路的 —例而將來自交流電源50之交流電源予以單相半波整流 藉由一極體D 1所半波整流的脈動流係不透過平滑電容 器等平滑電路而係直接輸入Ac繼電器1〇〇。電晶體TR1 為開關電路的一例，而導通或斷開輸入Ac繼電器ι〇〇的 201237912 脈動流。來自控制部1 〇的驅動信號透過電阻R2、電阻R3 及電谷器C1而輸入電晶體tri的基極。此外，電阻Rg及 電谷器C1係用以穩定驅動信號並使之輸入電晶體丁^之 基極的元件。二極體D2與AC繼電器1〇〇之繼電器線圈並 聯而吸收在繼電器線圈產生的反電動勢。 繼電器部20係作為檢測由AC繼電器部1〇〇輸出之電 流值的電流檢測電路，且進一步具備：電阻r 1、電阻R3 、及電容器C2。控制部1〇依據電阻旧兩端的電壓值以計 算出由AC繼電器部1〇〇輸出的電流值。 控制部1 0係在於對連接於定時器2〇〇之負載供應電 力或信號的期間’以輸出反覆以下周期的驅動信號的方 式’對AC繼電器1 〇〇進行PWM控制：將電晶體tr 1導通直 到從AC繼電器100輸出之電流值達到基準電流值之後， 在基準斷開期間斷開開關電路TR1信號。 DIP開關3 0係用以設定顯示對連接於定時器2 〇 〇之負 载供應電力或信號之期間之時間間隔及動作模式的開關 。脈衝產生部40輸出預定周期的脈衝。控制部1〇具有計 算脈衝產生部40產生之脈衝的計數器。控制部1〇於每次 因應在DIP開關3 0所設定之時間間隔的脈衝數進行總計 。又，控制部10因應在DIP開關3 0所設定的動作模式並依 據脈衝的計算數而控制對電晶體TR1輸出驅動信號的期 間’亦即’控制對負載供應電力或信號的期間。例如， 控制部10在進行總計之前導通AC繼電器1〇〇，亦即，在 進行總計之前以對電晶體TR1輸出驅動信號的第1動作 模式來動作。或是’控制部10在進行總計之後斷開A c繼 201237912 電器100 ’亦即，在進行總計之後以停止對電晶體TR1輸 出驅動信號的第2動作模式來動作。或是，控制部丨〇以反 覆第1動作模式與第2動作模式的第3動作模式來動作。 又，定時器200具備：突波吸收元件8α、電阻R1〇、 二極體D10、平滑電容器C10、電阻R12、發光二極體fd1 、電阻R16、電阻R14、發光二極體FD2、電晶體TR2、以 及齊納二極體D20。 突波吸收元件S A係突波電流保護用的元件。電阻 R10、電阻R12、及電阻R14係使電壓下降至用以驅動構 成控制部1 0之1C晶片必須的基準電壓的電阻體。二極體 D10係將來自交流電源50之交流電流予以半波整流的整 流電路。平滑電容器C10係將藉由二極體Dl〇所半波整流 之脈動流予以平滑的平滑電路。發光二極體FD丨係顯示 電源輸入定時器200之狀況的電源顯示用的元件。發光二 極體FD2係顯示AC繼電器1〇〇作動中，亦即，係顯示來自 定時器200之電力或信號供應至負載之狀況的作動狀態 顯示用的元件。控制部1 〇於驅動信號未輸入AC繼-電器 100之際，將信號供應至電晶體TR2的閘極，而於驅動信 號輸入AC繼電器100之際，不將信號供應至電晶體TR2 的問極。藉此，因應AC繼電器1 〇〇的作動狀態而使發光 一極體FD2發光。齊納二極體d2〇係用以穩定來自交流電 源之一定的電壓並供應至控制部1〇的元件。 本貫施例中，二極體D丨將未經平滑電路所平滑之脈 動流直接輸入AC繼電器10〇。亦即，定時器200於二極體 D1與AC繼電器100之間不具備平滑電路。將未經平滑電 201237912 路所平滑之脈動流直接輸入繼電s ® €盗線圈的情 穩定，因此’繼電器的可動接點會振動 ：=201237912 VI. Description of the invention: [Technical field to which the invention pertains] A timer having a relay. [First-hand technique] - Patent Document 1 discloses a timer which has a smoothing diode for rectifying an alternating current from a pyrogen and smoothing a current output from the rectifying diode The capacitor, the relay coil that inputs the current smoothed by the capacitor, and the relay that drives the current of the input * and the electric coil to be turned on (〇n) or turned off (〇ff) are driven by the B body. Patent literature! The number of parts of the timer is reduced. [Patent Document 1] Patent No. 3 6 1 2 2 2 2 [Disclosure] [Problems to be Solved by the Invention] The present invention is required to further reduce the number of parts of the timer. Accordingly, it is an object of the present invention to further reduce the number of parts having a timer of a relay. [Means for Solving the Problem] The timer of the present invention includes a relay unit that switches whether or not power or a signal is supplied to the load, and a control unit that operates in accordance with power from the AC power source to control the conduction or the relay of the relay unit. The department has: a half-wave rectification circuit that performs half-wave rectification from the intersection = source = current current; an AC relay in which a pulsating flow of a half-wave rectification is performed by a half-wave rectification circuit; and a switching circuit The pulsating flow of the input AC relay is turned on or off; the control unit outputs a driving signal to the switching circuit in order to supply the power or signal to the load, in order to perform the pwM control 201237912 system on the AC relay. In an embodiment of the circuit timing device, a half-wave rectifying circuit may also input a pulsating current that is not smoothed by the smoothing circuit into the AC relay thin. In the embodiment of the invention, the timer can also be an AC relay, and the 'relay coil' is a pulsating current coil, which is based on the main magnet, generates, and shields the .m 逋 phase and the main The magnetic flux is staggered by the secondary magnetic flux production two: the contact point, the system is negative and the movable contact, /, according to the main magnetic flux and the secondary magnetic; Gravity and the above-mentioned fixed contact electrical properties. In one embodiment of the timer of the present invention, it is also possible to prepare a diode in parallel with the relay coil and suck the opposite of the relay coil; The anti-electricity of the house of the country is in the case of the mine: the case of theft at the end of the month. 'It can also be the period during which the control department = force or signal is supplied to the load to output the repeated drive signal of the door period. For the week, the door is closed with the old road to control the AC relay benefit: The switch circuit is turned on until the motor value from the Ac relay to the reference Leihu 檑 尨—# # 』, the complex ' during the reference disconnection period Disconnect the switch circuit. In one embodiment of the timer of the iA month, the reference current value and the base of the rated voltage of the alternating current are controlled by the control unit; and the base relay is used for the pwM control of the AC relay. In one embodiment of the timer of the invention, it is also possible to: the substrate of the body: the storage control unit and the holding control unit, and the relay unit that has the :::: control unit electrically connected: It has a power output from the AC power source: a terminal of W, and an end electrically connected to the relay part and the load; And control 201237912 In addition, the summary of the above invention is not intended to recite all of the features of the invention. Moreover, the sub-combination of this special feature group can also constitute an invention. [Embodiment] [Embodiment for Carrying Out the Invention] The present invention will be described below by way of examples of the invention, but the following examples are not intended to limit the inventions of the invention. Further, all combinations of the features described in the embodiments are not limited to the essential features of the means for solving the invention. Fig. 1 is a view showing the circuit configuration of the timer 200 of the present embodiment. The timer 200 is a so-called relay built-in solid-state time-limited relay, and includes a relay unit 20, a control unit 1A, a DIP switch 30, and a pulse generation unit 40. The relay unit 20 switches whether or not the load is connected to the timer 2〇〇. Supply electricity or 彳§ number. The control unit 1 operates in accordance with the electric power from the AC power source 5, and controls the conduction or disconnection of the relay unit 20. The control unit 10 is, for example, an IC chip ??? for PWM-controlling the AC relay 1 期间 while supplying power or a signal to a load connected to the timer 2 〇, and outputting a drive signal to the transistor T R1 . The relay unit 20 includes a diode D1 and aC relay 100 connected in series, and a transistor TR1. Further, the relay unit 2A includes a diode D2e in parallel with the AC relay 100. The AC relay 1 is a half-wave rectifier circuit. For example, the AC power supply from the AC power source 50 is subjected to single-phase half-wave rectification, and the pulsating flow system that is half-wave rectified by the one-pole body D 1 is directly input to the Ac relay 1〇〇 without passing through a smoothing circuit such as a smoothing capacitor. The transistor TR1 is an example of a switching circuit that turns on or off the 201237912 pulsating flow input to the Ac relay ι〇〇. The drive signal from the control unit 1 is input to the base of the transistor tri through the resistor R2, the resistor R3, and the electric grid C1. Further, the resistor Rg and the electric grid C1 are elements for stabilizing the drive signal and inputting it to the base of the transistor. The diode D2 is connected in parallel with the relay coil of the AC relay 1 吸收 to absorb the counter electromotive force generated by the relay coil. The relay unit 20 is a current detecting circuit that detects a current value output from the AC relay unit 1A, and further includes a resistor r1, a resistor R3, and a capacitor C2. The control unit 1 calculates the current value outputted from the AC relay unit 1〇〇 based on the voltage values at both ends of the resistor. The control unit 10 performs PWM control of the AC relay 1 : during the period in which the power or signal is supplied to the load connected to the timer 2 ′ to output a drive signal of the following cycle: the transistor tr 1 is turned on. Until the current value output from the AC relay 100 reaches the reference current value, the switching circuit TR1 signal is turned off during the reference off period. The DIP switch 30 is used to set a switch that displays the time interval and operation mode of the period during which the power or signal is supplied to the load connected to the timer 2 〇. The pulse generating portion 40 outputs a pulse of a predetermined period. The control unit 1A has a counter that counts pulses generated by the pulse generating unit 40. The control unit 1 totals the number of pulses corresponding to the time interval set by the DIP switch 30. Further, the control unit 10 controls the period during which the driving signal is outputted to the transistor TR1, i.e., the period in which the power is supplied to the load, in accordance with the operation mode set by the DIP switch 30. For example, the control unit 10 turns on the AC relay 1 之前 before the total is performed, that is, operates in the first operation mode in which the drive signal is output to the transistor TR1 before the total is performed. Alternatively, the control unit 10 turns off the A c subsequent to the 201237912 electric appliance 100', that is, after the total is performed, the second operation mode for stopping the output of the drive signal to the transistor TR1 is operated. Alternatively, the control unit 动作 operates in a third operation mode in which the first operation mode and the second operation mode are reversed. Further, the timer 200 includes a surge absorbing element 8α, a resistor R1 〇, a diode D10, a smoothing capacitor C10, a resistor R12, a light-emitting diode fd1, a resistor R16, a resistor R14, a light-emitting diode FD2, and a transistor TR2. And Zener diode D20. The surge absorbing element S A is an element for surge current protection. The resistor R10, the resistor R12, and the resistor R14 lower the voltage to a resistor for driving a reference voltage necessary for forming the 1C chip of the control portion 10. The diode D10 is a rectifier circuit that half-wave rectifies the alternating current from the alternating current power source 50. The smoothing capacitor C10 is a smoothing circuit that smoothes the pulsating flow of the half-wave rectification by the diode D1. The light-emitting diode FD system displays components for power supply display in the case of the power input timer 200. The light-emitting diode FD2 system displays an AC relay 1 〇〇 operation, that is, an element for displaying an operation state display of a power supply from a timer 200 or a signal supply to a load. The control unit 1 supplies a signal to the gate of the transistor TR2 when the driving signal is not input to the AC relay 100, and does not supply the signal to the transistor of the transistor TR2 when the driving signal is input to the AC relay 100. . Thereby, the light-emitting body FD2 emits light in response to the operation state of the AC relay 1 〇〇. The Zener diode d2 is used to stabilize a certain voltage from the AC power source and supply it to the components of the control unit. In the present embodiment, the diode D丨 directly inputs the pulsating current smoothed by the smoothing circuit into the AC relay 10〇. That is, the timer 200 does not have a smoothing circuit between the diode D1 and the AC relay 100. The pulsating flow smoothed by the smooth current 201237912 is directly input into the relay s ® , and the movable contact of the relay will vibrate :=
鳴響聲。所以’本實施例非使用Dc繼產生所胡的 繼電器作為繼電器，以抑制因刪 。而係使用AC 處。如此-來，依據本實施例，可抑制 聲，在實現定時器200穩定動作之同時，能 时烏日 的零件數，且能降低成本》 、、’ '疋時益200 第2圖係顯示定時器2〇〇之内部構造 偁&的圖。定時器200 具備：電子電路12〇、以及收納與電子電路電性連接之Μ 繼電：H)〇的盒體14〇。電子電路12〇具備：作為控制部1〇 的ic曰曰片、配置有10晶片及發光二極體等元件的基板 、以及與基板122電性連接且配置有電阻等元件的基板 124。定時器200進一步具備作為外部端子的相容端子"ο ，該相容端子丨30包含有將來自交流電源5〇之電力輸出至 AC繼電器UH)及控制部10的料134、以及電性連_ 繼電器100與負載的端子132。 AC繼電器1〇〇具備：鐵心1〇2、繼電器線圈、蔽 極線圈106、可動片108、可動接點11〇、固定接點丨^、 以及軛114。繼電器線圈1〇4利用由二極體D1直接輸入的 脈動流而產生主磁通。蔽極線圈1〇6利用主磁通而產生相 位與主磁通錯開的副磁通。固定接點u 2藉由端子丨3 2而 電性連接於負載。可動接點丨1〇利用主磁通及副磁通所造 成的吸引力以使可動片i 08接觸鐵心1 〇2而與固定接點 1 12電性連接。此外，如以上所述，二極體D2並聯於繼電 器線圈104。如此一來，於輸入繼電器線圈1〇4之電流斷 201237912 開的情形下，產生於繼電器線圈1 04之反電動勢所造成的 感應電流藉由二極體D2而輸入繼電器線圈1〇4以產生磁 束。藉此，於PWM控制中且於輸入繼電器線圈ι〇4之電流 斷開的期間，又，於輸入繼電器線圈1〇4之電流為脈動流 的情形下，也可更確實維持能保持可動接點11〇與固定接 點1 1 2之電性連接的吸引力。 定時器200於盒體140的内部内建構成定時器2〇〇的 多數個元件。另一方面，要求定時器2〇〇的小型化及降低 成本時，小型的定時器200就無法内建繼電器驅動用之專 用的電源電路。如此一來，必須將來自對定時器2〇〇之IC 晶片供應電力之電源的電力也供應至繼電器。又，電源 電壓的規格依據繼電器的種類而不同。一旦使用不符合 電源電壓之規格的定時器，則於其定時器内建的繼電器 會產生鳴響聲等。因此，内建繼電器之定時器2〇〇之電源 電壓的規格會因繼電器之電源電壓的規格而受限制。為 了消除如此的限制’可考量將繼電器的導通控制設成 PWM控制以使能使用之電源電壓的範圍具有寬廣性。如 此的定時II係可考量利用平滑電路將已在整流電路所整 流2脈動流予以平滑之後，將經平滑後的電流輸入〇〇繼 電益並將DC繼電器的驅動設成pWM控制。但是，使用於 平β電路的電解電容器較為高價，而依據電源電壓的規 格必須使用大型的電解電容器。因&，使用電解電容器 會有不滿足定時器之小型化或降低成本之要求的情形。 根據以上說明，本實施例係提供未搭載將輸入繼電 器線圈之電流予以平滑之平滑電路的定時器。在此說明 -10 - 201237912 ’由於從整流電路輸出的電流為脈動流，所以無法對 電器線圈：應穩定的電流，而無法正常地運作繼電器。 因此，本實施例非传用Φ 〇。 吏用DCfe電盗而係使用具有蔽極線 之AC繼電器作為繼電器。蔽極線圈如以上所述係利用在 繼電線圈所產生的φ 太 吓座生的主磁通使之產生相位與主磁通錯開 之副磁通的線圈。以使用如此的蔽極線圈，能實現即使 無法從電源對繼電器線圈供應穩定的電流的情形下，也 能使繼電器正常地運作。me繼u的導通控制設 成PWM控制而能使可使用的電源電壓的規格具有寬廣性 。爰此，由於在一個定時器可使用的電源電壓的範圍變 寬廣，所以能縮小因應電源電愿之規格之定時器的種類 。如此一來，能使定時器的零件共同化而能實現大量生 產，所以能實現進一步降低成本。 而且，以採用泛用的AC繼電器作為具有蔽極線圈的 AC繼電器而能進一步降低成本。但是，採用泛用的ac 繼電器的情形下，為了穩定AC繼電器並使之運作，在調 整蔽極線圈的形狀等乃無法調整電感。因此，也可以調 整PWM控制的參數而實現AC繼電器的穩定動作。 第3圖係顯示因應定時器之電源電壓規格之pwM控 制之參數之一例的圖。PWM控制之參數係因應定時器之 電源電壓規格而預定著。如以上說明，控制部丨〇於對負 載供應電力或信號的期間，以輸出反覆以下周期的驅動 信號的方式，對AC繼電器1〇〇進行PWM控制：將電晶體 TR1導通直到從AC繼電器1〇〇輸出之電流值達到基準電 流值之後，在基準斷開期間斷開開關電路TR1。因此， -11- 201237912 也可因應電源電壓規格來變更基準電流電壓及基準斷開 期間以作為PWM控制的參數，而實現AC繼電器的穩定動 作。 电β跟囿規枪及敝極綠圈之 形狀之泛用的AC繼電器之中，可於分別的電源電壓規格 中穩定動作的AC繼電器。而且，顯示分別的電源電摩規 格所採用的AC繼電器可穩定動作之基準電流值及基準 斷開期間。也可如第3圖所示，例如隨著電源電壓 基準電流值愈大。又，也可隨著電源電壓愈低而基準斷 開期間愈短。如此一來’以因應電源之額定電壓而先預 定^準電流值及基準斷開期間，即使在採用泛用的AC繼 電益的情形下也能使AC繼電器穩定動作。 以上’利用實施例說明了本發明’然而，本發 技術範圍不限定於上述實施例所記載的範圍。熟習此項 技術的業者當清楚明白可針 · 項 .,, Τ對上述實施例進行多樣化的變The sound is ringing. Therefore, the present embodiment does not use Dc to generate the relay of the Hu as a relay to suppress the deletion. Instead, use the AC. In this way, according to the embodiment, the sound can be suppressed, and the number of parts of the U-day can be reduced while the timer 200 is stably operated, and the cost can be reduced. The internal structure of the device 2 is a diagram of 偁 & The timer 200 includes an electronic circuit 12A and a casing 14 that is electrically connected to the electronic circuit and relayed: H). The electronic circuit 12A includes an ic chip as the control unit 1 , a substrate on which components such as 10 wafers and light-emitting diodes are disposed, and a substrate 124 electrically connected to the substrate 122 and in which elements such as resistors are disposed. The timer 200 further includes a compatible terminal as an external terminal, the compatible terminal 30 includes a material 134 for outputting power from the AC power source 5 to the AC relay UH and the control unit 10, and an electrical connection. _ Relay 100 and terminal 132 of the load. The AC relay 1A includes: a core 1, a relay coil, a shield coil 106, a movable piece 108, a movable contact 11A, a fixed contact 丨, and a yoke 114. The relay coil 1〇4 generates a main magnetic flux using a pulsating flow directly input from the diode D1. The shield coil 1〇6 uses the main magnetic flux to generate a secondary magnetic flux that is shifted from the main magnetic flux. The fixed contact u 2 is electrically connected to the load by the terminal 丨3 2 . The movable contact 丨1〇 utilizes the attraction force of the main magnetic flux and the secondary magnetic flux to electrically connect the movable piece i 08 to the iron core 1 〇2 and to the fixed contact 1 12 . Further, as described above, the diode D2 is connected in parallel to the relay coil 104. In this way, when the current of the input relay coil 1〇4 is turned off 201237912, the induced current generated by the counter electromotive force of the relay coil 104 is input to the relay coil 1〇4 through the diode D2 to generate the magnetic flux. . Thereby, in the PWM control and during the period in which the current input to the relay coil ι4 is turned off, and in the case where the current input to the relay coil 1〇4 is a pulsating flow, it is possible to more reliably maintain the movable contact. 11〇 The attractiveness of the electrical connection to the fixed contact 1 1 2 . The timer 200 has a plurality of components constituting the timer 2 built in the inside of the casing 140. On the other hand, when the timer 2 is required to be downsized and the cost is reduced, the small timer 200 cannot be built with a dedicated power supply circuit for relay driving. As a result, power from a power source that supplies power to the IC chip of the timer 2A must also be supplied to the relay. Also, the specifications of the power supply voltage vary depending on the type of relay. Once a timer that does not meet the specifications of the power supply voltage is used, the relay built into its timer will produce a beep. Therefore, the specifications of the power supply voltage of the timer of the built-in relay are limited by the specifications of the power supply voltage of the relay. In order to eliminate such limitations, it is considered that the conduction control of the relay is set to PWM control to enable a wide range of power supply voltages to be used. Such a timing II system can consider using a smoothing circuit to smooth the smoothed current pulsation flow in the rectifier circuit, input the smoothed current into the relay, and set the drive of the DC relay to pWM control. However, electrolytic capacitors used in flat beta circuits are relatively expensive, and large electrolytic capacitors must be used depending on the specifications of the power supply voltage. The use of electrolytic capacitors due to & will not satisfy the requirements of miniaturization of the timer or cost reduction. According to the above description, the present embodiment provides a timer which is not provided with a smoothing circuit for smoothing the current input to the relay coil. Here, the description -10 - 201237912 ’ Since the current output from the rectifier circuit is a pulsating flow, the electrical coil cannot be used: the current should be stable, and the relay cannot be operated normally. Therefore, this embodiment does not pass Φ 〇. DC DCfe electric thieves are used as relays with shielded AC relays. As described above, the shield coil is a coil in which the main magnetic flux generated by the relay coil is too scary to generate a sub-magnetic flux whose phase is shifted from the main magnetic flux. By using such a shield coil, it is possible to make the relay operate normally even if a stable current cannot be supplied from the power source to the relay coil. The conduction control of the me relay is set to PWM control to make the specification of the usable power supply voltage broad. Therefore, since the range of the power supply voltage that can be used in one timer is widened, the type of the timer that meets the specifications of the power supply can be reduced. In this way, the parts of the timer can be shared and a large amount of production can be realized, so that further cost reduction can be achieved. Moreover, the cost can be further reduced by using a general-purpose AC relay as an AC relay having a shield coil. However, in the case of a general-purpose ac relay, in order to stabilize the AC relay and operate it, the inductance cannot be adjusted by adjusting the shape of the shield coil. Therefore, it is also possible to adjust the parameters of the PWM control to achieve stable operation of the AC relay. Fig. 3 is a view showing an example of parameters of pwM control in accordance with the power supply voltage specification of the timer. The parameters of the PWM control are predetermined in response to the power supply voltage specification of the timer. As described above, the control unit PWM-controls the AC relay 1 to output the drive signal of the following period while the power or signal is being supplied to the load: the transistor TR1 is turned on until the AC relay 1 is turned on. After the current value of the output of the crucible reaches the reference current value, the switching circuit TR1 is turned off during the reference off period. Therefore, -11-201237912 can also change the reference current voltage and the reference disconnection period as parameters of the PWM control in response to the power supply voltage specification, thereby achieving stable operation of the AC relay. Among the AC relays that are commonly used in the shape of the electric beta and 敝 gauge guns and the bungee green circle, AC relays that can operate stably in the respective power supply voltage specifications. Moreover, the AC current used in the respective power supply motor specifications can be used to stabilize the reference current value and the reference disconnection period. It can also be as shown in Fig. 3, for example, as the power supply voltage reference current value is larger. Also, the shorter the power supply voltage is, the shorter the reference disconnection period is. In this way, the AC relay can be stably operated even in the case of using the general-purpose AC relay benefit by pre-determining the quasi-current value and the reference off period in response to the rated voltage of the power source. The present invention has been described above using the embodiments. However, the scope of the present invention is not limited to the scope described in the above embodiments. Those skilled in the art will be able to make a variety of changes to the above embodiments when they understand clearly
更或加以改良❶而從發明專 I # ^ ^ 〜T 寻利範圍的記载當清 :月白多樣化的變更或加以改良後的 發明之技術範圍而得。 吧匕3於本 示的：ΓΗ申Π利範圍、說明書、以及圖式中所 驟、以及階段等各處;的I::;中:=、程序、步 為「較^ ^ 丁順序並不特別明顯“ 干又...逛刖」、「於…之前裳， 之前之處，應注意除非將 月】之處理的輸出在之後的處理使用 順序來實現。關於發明#利t請專 以任意的 及圖式中的動作流程，即使是飞月-以 I便疋方便上使用「首先」、「 -12- 201237912 其次」等進行了說明，也非意味著必須以此順序來實施 〇 【圖式簡單說.明】 第1圖係顯示本實施例之定時器之電路構造的圖式。 第2圖係顯示本實施例之定時器之内部構造的圖式。 第3圖係顯示PWM控制之參數之一例的圖式。 【主要元件符號說明】 10 控制部 20 繼電器部 30 DIP開關 40 .脈衝產生部 50 交流電源 100 AC繼電器 102 鐵心 104 繼電器線圈 106 蔽極線圈 108 可動片 110 可動接點 112 固定接點 114 軛 120 電子電路 122 > 124 基板 130 相容端子 132、 134 端子 140 盒體 -13- 201237912 200 定時器 Cl 、 C2 、 CIO 電容器 D1、D2、D20 二極體 FD1、FD2 發光二極體 R1、R2、R3、 電阻 R4、RIO、R12、 R14 、 R16 SA 突波吸收元件 TR1 、 TR2 電晶體 -14-Further, it is improved or not, and the description of the scope of profit seeking from the invention I # ^ ^ 〜T is clear: the change of the moon white variety or the technical scope of the improved invention.匕 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于 于It is particularly obvious that "dry and wandering around", "before, before, before, should pay attention to the output of the processing unless the month" is implemented in the order of subsequent processing. Regarding invention #利特, please specialize The flow of actions in the drawing and the drawings, even if it is a flying moon - I use the convenience of "first", "-12-201237912 second", etc., it does not mean that it must be implemented in this order. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a circuit configuration of a timer of this embodiment. Fig. 2 is a view showing the internal structure of the timer of the embodiment. Fig. 3 is a diagram showing an example of parameters of PWM control. [Main component symbol description] 10 Control unit 20 Relay unit 30 DIP switch 40. Pulse generation unit 50 AC power supply 100 AC relay 102 Core 104 Relay coil 106 Shield coil 108 Movable piece 110 Movable contact 112 Fixed contact 114 Yoke 120 Electronics Circuit 122 > 124 Substrate 130 Compatible Terminal 132, 134 Terminal 140 Case-13 - 201237912 200 Timer Cl, C2, CIO Capacitor D1, D2, D20 Diode FD1, FD2 LEDs R1, R2, R3 , resistor R4, RIO, R12, R14, R16 SA surge absorbing element TR1, TR2 transistor-14-