◎ 全隔离单相交流调压模块 (DTY)  

FULL ISOLATION SINGLE PHASE AC    

VOLTAGE REGULATOR MODULE (DTY)

◆ 全隔离单相交流调压模块（以下简称单相调压模块DTY）是集同步变压器、相位检测电路、移相触发电路和输出可控硅于一体，当改变控制电压的大小，就可改变输出可控硅的触发相角，即实现单相交流电的调压。根据输出可控硅器件不同分一只双向可控硅的普通型，两只单向可控硅反并联的增强型和一只单向可控硅的半波型等三类。按单相交流负载的额定电压分 220V 和380V 两类，按控制信号的不同分 E、F、G、H 型等四类，以下为规格型号表（注：电流等级为模块内部可控硅最大电流有效值）

为方便说明，下面以 0-5V 控制信号为标准作介绍（型号简称 DTY）：

◆ ①②为输出端 , 即模块内部可控硅的两极 . 增强型和普通型的①②端无极性 , 半波型模块内部单向可控硅的阳极接①端 , 阴极接②端。

◆ ③④为模块内部同步变压器初级 , 分 220VAC 和380VAC 两种规格 : 220VAC 规格允许使用在 165-240VAC 范围的电网上 , 380VAC 规格的模块允许使用在 285-420VAC 的电网上 , ③④不分极性。

◆  COM 为内部接地端 , CON 为控制端 , +5V 为内部产生 , 只供电位器手动控制用 , ①②③④的强电部分和 +5V,CON, COM 的弱电部分为全隔离 . 应用电路如下图所示 :

◆ The full isolation single phase AC voltage regulator module (hereinafter referred to as the single phase voltage regulator module DTY) integrates the synchronous transformer, the phase detection circuit, the phase-shift trigger circuit and the thyristor output circuit. The trigger angle (firing angle) of the thyristor can be controlled by changing the control voltage, that is, to regulate the single phase AC output voltage. According to the different types of the thyristor, the single phase  oltage regulator module DTY can be divided into three types: ordinary type (one TRIAC as the output component), enhanced type (a pair of reverse-parallel SCR as the output component) and a half-wave type (one SCR as the output component). According to the  rated voltage of single phase AC load, the single phase voltage regulator module DTY can be divided into 220V type and 380V type. According to different control signals, the single phase voltage regulator module DTY can be divided into four types: E, F, G, and H types. The following is the specification model table (Note: The current grade in this table is the maximum rms current of the internal thyristor of the module).

For convenience of explanation, the following introduces with the 0~5V control signal as a standard (Model: DTY):

◆ ① and ② ports are the output terminals of the module (i.e., the two poles of the thyristor inside the module). ① and ② ports of the enhanced and the ordinary type have no polarity. The anode of the SCR thyristor inside the half-wave type module  is connected to the  ① port, and the cathode is connected to the ② port.

◆ ③ and ④ ports are the synchronous transformer primary inside the module, and the specification can be divided into 220VAC type and 380VAC type: 220VAC type can be used into the power grid at the range of 165-240VAC, 380VAC type can be used into the power grid at the range of 285-  420VAC. ③ and ④ ports have no polarity.

◆ COM port is the internal common ground  terminal, CON port is the control terminal, and the +5V port is the power supply generated inside the module only for the manual control of potentiometer. The strong current part ( ① , ② , ③ , and ④ ports) and the weak current part (+5V, CON, ,,,,,,,,,,,,and COM ports) are fully isolated. The application

circuit is shown below:

◎ 有关技术指标及应注意的问题

Related technical specifications and precautions

1、通过①②加在负载上的电压相位和③④端的电压相位必须一致，否则失控。电网频率须为 50Hz。

2、CON 对 COM 必须为正，如极性相反则输出端失控（全开或关闭）。当控制端 CON 从 0-5V 改变时，交流负载上的电压从 0 伏到最大可调（对阻性负载而言）。

其中 CON 在 0-0.8V 左右时为全关闭区域，可靠关断模块的输出；CON 在 08V-4.6V 左右为可调区域，即随着控制电压的增大，导通角∝从 180°到 0°线性减小，交流负载上的电压从 0 伏增大到最大值；CON 在4.6V-5V 左右时为全开通区域，交流负载上的电压为最大值。

3、CON 对 COM 的输入阻抗分 EF 和 H 型均为大于等于 30K 欧；G 型为 250 欧。+5V 电压信号只提供给手控电位器用，不作它用，所选用的电位器阻值在2-10KΩ间，注：4-20mA 的 G 型不能用电位器手动调节，些时 +5V 端也没有用处。

4、单相交流异步电动机的调速原则上应采用变频器，只有风机类、水泵类单相电机在要求不高的场合可采用单调压模块。

5、三只单相调压模块不能使用在三相电网上对三相负载调压。

6、弱电部分、强电部分、模块底板互相之间绝缘电压均大于 2000VAV。

7、整个模块的发热量按负载实际电流安倍数乘 1.5 瓦 /安倍计算，散热器可选用 MG-L、MG-H 系列。

8、有关电流等级的选取及保护等有关使用注意事项请

参考单相交流固态继电器说明。

1、 The phase applied to the load through ① and ② ports must be consistent with the phase of ③ and ④ ports, otherwise the device will be out of control. And the frequency of the power grid must be 50 Hz.

2、 CON must be positive relative to COM, and if the polarity is opposite, the output terminal will be out of control (fully open or fully closed). When the control terminal CON changes from 0V to 5V, the voltage on the AC load can be adjusted from 0V to  the maximum value (for resistive loads). When the control voltage on CON is around 0V~0.8V (Fully-  closed Region), the control signal can reliably shut down the output of the module. When the control voltage on CON is around 0.8V~4.6V (Adjustable Region), the conduction angle decreases linearly from 180° to 0° as the control voltage increases, and the voltage on the AC load  creases from 0V to the maximum value. When the control voltage on CON is around 4.6V~5V (Full-open Region), the voltage on the AC load is the maximum value (close to the power grid voltage).

3.、 The input impedance between CON and COM is 5-99999divided into E, F and H type (the impedance of these three types are greater than or equal to 30KΩ), and G type (the impedance is 250Ω). The +5V voltage signal is only provided for the manual potentiometer (the selected resistance is between 2~10KΩ), not for other uses. Note: The G type (4~20mA as control signal) cannot be manually adjusted by the potentiometer, so the +5V port is useless for the G type.

4、 The speed control of the single phase AC asynchronous motor should be adjusted by the frequency converter, while the single phase voltage regulation module can only be applied to fan motors and pump motors where the requirements are not high.

5、It is not possible to use three single phase voltage regulator modules to regulate the three phase load on the three phase power grid.

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