◎ 全隔離單相橋式全控整流模塊 (DQZ)
FULL ISOLATION SINGLE PHASE FULLY- CONTROLLED BRIDGE RECTIFIER MODULE (DQZ)
◆ 全隔離單相橋式全控整流模塊 ( 以下簡(jiǎn)稱(chēng)單相整流模塊 DQZ) 內(nèi)部集四只單向可控硅組成的全控橋 , 移相電路和觸發(fā)電路于一體 , 在外部提供交流同步電壓(18VAC) 下 , 便可以自動(dòng)控制或外接電位器手動(dòng)控制 ,
達(dá)到改變四只單向可控硅的導(dǎo)通角即可方便地實(shí)現(xiàn)單相交流電直接轉(zhuǎn)向幅值無(wú)級(jí)可調(diào)地脈動(dòng)直流電壓 .
◆ 單 相 整 流 模 塊 DQZ 根 據(jù) 單 相 交 流 電 網(wǎng) 電 壓分 380V( 可 應(yīng) 用 180~450VAC), 220V( 可 應(yīng) 用120~250VAC), 110V( 可應(yīng)用 50~120VAC), 36V( 可應(yīng)用20~50VAC) 四大系列; 根據(jù)信號(hào)的不同分E, F, G,H 等四類(lèi)
◆ The full isolation single phase fully-controlled bridge rectifier module (hereinafter referred to as the single phase rectifier module DQZ) integrates the fully-controlled bridge rectifier (consisting of four SCR thyristors), the phase-shift circuit and the trigger circuit. Under the AC synchronous voltage (18VAC) provided by external device, the conduction angle of the four SCR thyristors can be changed by the automatic control method or manual control method (i.e. the external potentiometer), which means the single phase AC voltage can be easily converted into the pulsed DC voltage with the continuously adjustable amplitude.
◆ According to the voltage of the single phase AC power grid, the single phase rectifier module DQZ can be divided into four types: 380V type (applicable to 180~450VAC), 220V type (applicable to 120~250VAC), 110V type (applicable to 50~120VAC), and 36V type (can be applied to 20~50VAC). According to different control signals, the single phase rectifier module DQZ can be divided into four types: E, F, G, and H types.
◆ 為方便說(shuō)明，下面以 0-5V 控制信號(hào)為標(biāo)準(zhǔn)作介紹
◆ For convenience of explanation, the following introduces with the 0~5V control signal as a standard
① ② 為 交 流 電 源 進(jìn) 線 端， 電 壓 等 級(jí) 分 380VAC、220VAC、110VAC 和 36VAC。
③④為直流輸出正負(fù)端，負(fù)載電壓。
⑤⑥為同步電壓輸入端，允許輸入與①②交流電源同步的幅值為 18±5VAC 的電壓，⑤與②為同步端。
⑦ ⑧ ⑨ 分 別 為 +5V CON 和 COM， 其 中 +5V 為 模塊內(nèi)部產(chǎn)生，只供電位器手動(dòng)控制用，CON 為控制端，COM 為內(nèi)部地端。其中的①②③④的強(qiáng)電部分與
⑤⑥⑦⑧⑨的弱電部分為全隔離。
① and ② ports are the AC power supply input terminals of the module, and the voltage grade can be divided into 380VAC, 220VAC, 110VAC and 36VAC.
③ and ④ are DC output positive and negative terminals of the load voltage respectively
⑤ and ⑥ ports are the synchronous voltage input terminals, allowing the input voltage with amplitudes of 18 ± 5 VAC (synchronized with AC power supply of ① and
② ports). ⑤ and ② ports are synchronous terminals.
⑦, ⑧ and ⑨ ports are +5V port, CON port and COM port respectively. 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
(⑤, ⑥, ⑦, ⑧, and ⑨ ports) are fully isolated.
注：以上電流等級(jí)為模塊輸出電流最大有效值。
Note: The current grade in this table is the maximum rms current of the module.
◎ 有關(guān)技術(shù)指標(biāo)及應(yīng)注意的問(wèn)題
Related technical specifications and precautions
1、當(dāng)輸出端并聯(lián)電解電容濾波時(shí) , 由于電容兩端電壓不能突變 , 這種高壓 , 大容性場(chǎng)合很容易造成模塊過(guò)流而損 壞 , 因此模塊上電前必須保證控制端 CON 電壓在 0V,上電后 CON 須從 0V 逐漸增大 , 以保證電容沖擊電流最小。
2、 CON 對(duì) COM 必須為正，如積極相反則輸出端失控（全開(kāi)或全閉）。當(dāng)控制端 CON 從 0-5V 改變時(shí)，負(fù)載上的電壓從 0 伏到最大值可調(diào)（對(duì)阻性負(fù)載而言）。其中 CON 在 0-0.8V 左右時(shí)為全關(guān)閉區(qū)域，可靠關(guān)斷模塊的輸出；CON 在 0.8V-4.6V 左右為可調(diào)區(qū)域，即隨著控制電壓的增大，導(dǎo)通角∝從 180°到 0°線性最小，負(fù)載上的電壓從 0 伏增大到最大值；CON 在4.6V-5V左右時(shí)為全開(kāi)通區(qū)域，負(fù)載上的電壓為最大值。
3、CON 對(duì) COM 的輸入阻抗分 E、F 和 H 型均為大于等于 30K 歐；G 型為 250 歐。+5V 電壓信號(hào)只提供給手控電位器用，不作它用，所選用的電位器阻值在2-10KΩ 間。注：4-20mA 的 G 型不能用電位器手動(dòng)調(diào)節(jié)，此時(shí) +5V 端也沒(méi)有用處。
4、當(dāng)②⑤端不同步時(shí)，整個(gè)模塊無(wú)輸出，這里只要把⑤、⑥端兩根線對(duì)調(diào)一下即可。同步變壓器功率 2W 即可，我公司有 220V、18V（2W）；380V/18V（2W）配套供應(yīng)。
5、整個(gè)模塊的發(fā)熱量按負(fù)載實(shí)際電流安倍數(shù)乘每安倍3.0 瓦計(jì)算，散熱器可選用 MG-L、MG-H 系列。
6、弱電部分、強(qiáng)電部分、模塊底板相互間絕緣電壓均大于 2000VAC。
7、單相整流模塊只能使用在 50Hz 的電網(wǎng)上，其中220V 系 列 使 和 在 120-250VAC 電 網(wǎng) 上，110V 和36V 系列分別使用在 50-120VAC 和 20-50VAC 電網(wǎng)上，380V 系列使用在 180-450VAC 電網(wǎng)上，但⑤⑥兩端的同步電壓必須在 18V±5VAC 范圍內(nèi)。
8、有關(guān)電流等級(jí)的選取及保護(hù)等有關(guān)使用注意事項(xiàng)請(qǐng)參考單相交流固態(tài)繼電器說(shuō)明。
1、When the output terminal of the module is connected in parallel with an electrolytic capacitor to filter, the voltage across the capacitor cannot be abruptly changed, so in this high-voltage and large-capacity case, the module will be damaged due to overcurrent. Therefore, before the module is powered on, it must ensure that the voltage on the control terminal CON is 0V, and after power- on, the voltage on the control terminal CON must be gradually increased from 0V to ensure the minimum surge current of the capacitor.
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 α decreases linearly from 180° to 0° as the control voltage increases, and the voltage on the AC load increases 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 divided into E
