[原创] Infineon CoolMOS C7 2.5kW PFC电源解决方案

Infineon公司的CoolMOS C7是650V功率CMOS开关,具有更快的开关特性,更低的开关损耗和更小的PCB面积,从而大大改善了整个系统的性能.主要用在通信,服务器,太阳能和PC电源.本文介绍了CoolMOS C7主要特性和优势,以及采用PFC控制器ICE3PCS01G的2.5 kW CCM PFC评估板EVAL_2.5KW_CCM_4PIN主要指标,电路图,材料清单和PCB设计图.

Infineon Technologies introduces the new TO247 4pin package in conjunction with the latestCoolMOS™ technologies of 600 V C7, 650 V C7 and 600 V P6. With new generations ofpower switches becoming faster and faster, the effect of the parasitic elements of packageand board limit more and more the overall system performance. In many applicationsthe switching losses are significantly increased by the negative feedback caused bythe parasitic inductance in the source lead of the power switch. An effective measure toovercome this problem is to provide an additional connection to the source (Kelvin connection),that is used as a reference potential for the gate driving voltage, thereby eliminatingthe effect of voltage drops over the source inductance. The achievable efficiencyimprovement, resulting from faster switching transients, can in fact be significant.
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