microchip公司的RS1-B-0039是1800W空調(diào)控制板參考設(shè)計(jì),可以迅速評(píng)估和開(kāi)發(fā)多種雙馬達(dá)或單馬達(dá)控制應(yīng)用.目標(biāo)是控制無(wú)刷DC(BLDC)馬達(dá)和無(wú)傳感器工作的永磁同步馬達(dá).設(shè)計(jì)系統(tǒng)具有用于功率因素修正的前端交叉升壓轉(zhuǎn)換器. 升壓轉(zhuǎn)換器還有助于在整個(gè)輸入范圍內(nèi)調(diào)整DC總線.兩個(gè)馬達(dá)負(fù)載能同時(shí)控制.三相IPM逆變器能驅(qū)動(dòng)大功率馬達(dá)和單獨(dú)的IGBT分立柵極驅(qū)動(dòng)器電路,用來(lái)驅(qū)動(dòng)ODU.

參考設(shè)計(jì)采用不同的控制技術(shù)驅(qū)動(dòng)BLDC,PMSM或ACIM馬達(dá).它還具有PFC電路以提高輕負(fù)載時(shí)的效率性能.輸入電壓160V-265V時(shí)開(kāi)發(fā)板最大輸出功率為1.8KW.演示板支持1.34KW壓縮機(jī)和高達(dá)120W ODU冷凝器風(fēng)扇.其它特性包括傳感器用來(lái)溫度檢測(cè),步進(jìn)馬達(dá)用來(lái)控制EEV以及用于交流負(fù)載的繼電器.參考設(shè)計(jì)還可以用來(lái)其它大功率應(yīng)用如HVAC,紡織機(jī)器,水泵,工業(yè)馬達(dá)等.本文介紹了空調(diào)控制板RS1-B-0039參考設(shè)計(jì)主要特性和指標(biāo),框圖,電路圖,材料清單和PCB設(shè)計(jì)圖.

The Development Board is intended to aid the user in the rapid evaluation and development of a wide variety of dual or single motor control applications. This development system is targeted to control Brushless DC (BLDC) motors, Permanent Magnet Syn-chronous Motors (PMSM) in sensor-less operation.

The system has Front end Interleaved Boost convertor for the Power factor correction. The boost convertor also helps to regu-late the DC Bus over a wide input range. Two motor loads can be controlled simultaneously with the demo board. three-phase IPM inverter that can drive high powered motor and separate discrete gate driver’s & IGBT circuitry intended to drive ODU. The circuit drives a BLDC, PMSM or ACIM motor using different control techniques independent of additional hardware. It also has Power Factor Correction (PFC) circuitry in order to provide efficient performance at light loads.

This development board is designed to target the Air-conditioner application primarily where control of Compressor & ODU is possible simultaneously along with power factor control Stage to meet the regulations. The board is intended for approximately 1.8KW output when running from a 160V to 265V single-phase input voltage range. The Demo board supports 1.34KW compressor and up to 120W ODU Condenser Fan. Additional Features like Sensors for temperature monitoring, Stepper motor control for EEV, and relays for ac loads have been implemented in the demo board to support Air-conditioner design requirements.

The demo board can also be considered for other high-power applications like HVAC, Textile machines, water pumps, indus-trial motors with slight modifications.

圖1.空調(diào)控制板框圖

圖2.空調(diào)控制板底視圖

圖3.空調(diào)控制板頂視圖

空調(diào)控制板RS1-B-0039主要指標(biāo):

圖4. 空調(diào)控制板RS1-B-0039電路圖(1):輸入AC和PFC級(jí)

圖5. 空調(diào)控制板RS1-B-0039電路圖(2):輔助電源

圖6. 空調(diào)控制板RS1-B-0039電路圖(3):逆變器模塊功率級(jí)

圖7. 空調(diào)控制板RS1-B-0039電路圖(4):ODU逆變器電源級(jí)

圖8. 空調(diào)控制板RS1-B-0039電路圖(5):壓縮機(jī)和ODU反饋級(jí)

圖9. 空調(diào)控制板RS1-B-0039電路圖(6):數(shù)字MCU級(jí)

圖10. 空調(diào)控制板RS1-B-0039電路圖(7):應(yīng)用級(jí)

圖11. 空調(diào)控制板RS1-B-0039電路圖(8):通信級(jí)

圖12. 空調(diào)控制板RS1-B-0039電路圖(9):壓縮機(jī)和ODU-OCP和OVP級(jí)

圖13. 空調(diào)控制板RS1-B-0039電路圖(10):VAC檢測(cè)和VDC檢測(cè)級(jí)

空調(diào)控制板RS1-B-0039材料清單:

變壓器參數(shù):

圖14. 空調(diào)控制板RS1-B-0039 PCB設(shè)計(jì)圖:頂層

圖15. 空調(diào)控制板RS1-B-0039 PCB設(shè)計(jì)圖:底層

編輯：jq