3BHB003230R0101模塊，5SHX1445H0001配置手冊(cè)
產(chǎn)品必須符合標(biāo)準(zhǔn)X、防護(hù)等級(jí)Y甚至2MOPP，因?yàn)殡娫匆驯粵Q定用在最近推出的呼吸機(jī)上。最重要的是，開發(fā)人員還需要考慮MTBF值。想象一下患者連上了呼吸機(jī)，而電源突然出現(xiàn)故障…… 這當(dāng)然要不惜一切代價(jià)來避免！因此，開發(fā)人員需要知道電源在沒有維護(hù)的情況下可以安全工作多長(zhǎng)時(shí)間。這篇關(guān)于RECOM的RACM1200-V的文章可以回答其中一些問題。
RECOM認(rèn)為最安全的選擇是唯一的選擇，在設(shè)計(jì)RACM1200-V時(shí)就牢記了這一點(diǎn)，電源也必須通過所有必要的認(rèn)證。
3BHB003230R0101模塊，5SHX1445H0001配置手冊(cè)RACM1200-V樹立了對(duì)緊湊定義的新標(biāo)準(zhǔn)，涵蓋極寬的功率范圍，無風(fēng)扇冷卻也能可靠地工作。特殊的基板確保有效散熱并提供高達(dá)1000W的連續(xù)輸出功率。RACM1200-V帶有兩個(gè)額外的輸出因此不像一些應(yīng)用需要額外電源，并提供12V可調(diào)系統(tǒng)風(fēng)扇輸出和5V/1A待機(jī)輸出。
由于電源電壓和輸出電壓之間有4kVAC隔離電壓，因此RACM1200-V幾乎可用在需要電源的所有地方，例如充電器、LED照明系統(tǒng)、激光設(shè)備、分析儀器、高頻器件、機(jī)器人、醫(yī)療床椅，以及與患者直接接觸的醫(yī)療設(shè)備。RECOM可為設(shè)計(jì)人員提供符合規(guī)格需求的電源。
雖然RACM1200-V通過IEC 60601-1認(rèn)證，但不能保證要安裝它的設(shè)備也符合標(biāo)準(zhǔn)。然而使用認(rèn)證電源是滿足標(biāo)準(zhǔn)的前提之一，除了確實(shí)能夠降低開發(fā)成本還可以加快最終產(chǎn)品的認(rèn)證過程。
RACM1200-V提供符合2MOPP認(rèn)證的（MOPP=患者保護(hù)措施）絕緣和最小漏電流，這意味著它符合醫(yī)療設(shè)備的患者安全標(biāo)準(zhǔn)。
信號(hào)輸出和5V輸出與電源電壓之間的隔離為1.5kVAC。
RACM1200-V系列具有集成EMC濾波器，可以輕松滿足EN 55032:2015 Class B對(duì)輻射干擾和線路干擾的要求。新型RECOM電源符合所有工業(yè)應(yīng)用、IT產(chǎn)品和醫(yī)療設(shè)備相關(guān)的國(guó)際安全標(biāo)準(zhǔn)。
RACM1200-V的輸入電壓范圍為85 VAC至264 VAC，允許高達(dá)1000W的連續(xù)輸出。采用40mm高的金屬外殼，封裝面積僅102mm x 229mm，可接觸冷卻。輸出功率可達(dá)1200W并維持10秒。若要1200W連續(xù)輸出，電源必須配備風(fēng)扇同時(shí)確保有2.5m/s的空氣流動(dòng)。這就是為什么RACM1200-V也配備了控制輔助輸出以進(jìn)行溫度管理。輸出功率：40°C環(huán)境溫度和230V輸入電壓的輸出功率為1000W；使用風(fēng)扇或短峰值負(fù)載可達(dá)1200W。
special hardware multiplier and special instructions, DSP can quickly realize various digital signal processing and meet various high real-time requirements. With the increasing complexity of modern embedded system, operating system has become an indispensable part of embedded system. Free embedded operating systems, such as Linux, have developed rapidly with their continuous improvement. Linux is a free, powerful, reliable, scalable and extensible operating system. Linux implements many theories of modern operating system, and supports complete hardware drivers, network communication protocols and multi processor architecture. The disclosure of its source code is more conducive to the embedded application of the operating system.Based on the above analysis, the author developed a dual core embedded system based on arm and DSP chip. The system makes full use of the respective characteristics of arm and DSP. It can be developed jointly by arm and DSP chips or independently by arm or DSP. Linux is selected as the operating system to give full play to the efficiency of the system.
1. Overall design of the system
Due to the strong control performance of ARM chip, arm is mainly used for control and a small amount of data processing in embedded systems. In this way, on the one hand, the CPU is required to have low power consumption and enough clock frequency to run the operating system to meet the portable requirements; On the other hand, it is also required to have enough interfaces to facilitate the expansion of performance. Based on the above considerations, hy7202 is selected as the CPU in the development platform.
As a part of data operation, DSP can give full play to its unique advantages in digital signal processing.
