Core Viewpoint - The article discusses the disassembly of a small electric vehicle driver, highlighting its components and the quality of materials used, indicating a trend in the industry towards higher quality despite competitive pressures. Group 1: Product Specifications - The electric vehicle driver has a compact size, with a casing length of approximately 100mm, which is considered small for this type of device [4] - The rated voltage is 48V with a current of 17A, resulting in a power output of 800W, which is significant for its size [6] - The driver utilizes an Infineon XMC1302 microcontroller, which is more expensive than typical low-cost MCUs, suggesting a focus on quality [17] Group 2: Component Analysis - The driver includes a 680uF input electrolytic capacitor rated at 63V and several 100uF capacitors in the motor drive circuit [21][23] - A DC-DC converter from Silan Micro (SD4938) is used to step down the 48V input for the MOS driver circuit, designed to handle high voltage and reverse electromotive force [25] - The driver employs six NMOS transistors from Silan Micro (SVT077R5NT), rated for 68V and 95A, indicating robust design for high current applications [33] Group 3: Market Insights - The article reflects on the competitive landscape of the electric vehicle driver market, noting that despite the high-quality materials used, the market has become saturated and competitive over the years [40] - The use of premium components in the driver raises questions about its cost competitiveness in a market that has become a "red ocean" [40]

以下文章来源于电子开发学习 ，作者电子开发学习 电子开发学习 . 每日定期推送电子设计相关的学习例程，包括原理图设计、Layout、软件设计等相关内容，也会不定期 推送各种电子、单片机相关软件的教程。 我是芯片超人花姐，入行20年，有50W+芯片行业粉丝。 有很多不方便公开发公众号的， 关于芯片买卖、关于资 源链接等， 我会分享在朋友圈 。 扫码加我本人微信 在我拆解了九号车驱动器（文章链接： 性价比极高，适合买来diy。拆解九号电动车原装驱动器 ）之后，有粉丝寄来一个 2016 年的小牛驱动器。 既然外壳看完了，顺便把螺丝也看一下，四颗螺丝是从铸铝打到 ABS 材质的，所以是自攻丝，而 另外一个是从 ABS 顶壳打到铸铝底壳的，所以是这种标准 M3 螺丝。 拿到这个驱动器的第一时刻，我就被圈粉了，这驱动器，看起来做工相当牛逼。面壳是黑色 ABS 的，非常结实。 底壳是铝合金铸造的，带散热鳍片。 这个驱动器拆解还非常方便。拆掉螺丝就可以拿掉上壳，这种组装方式，对有一定改装能力的用户 比较友好。 从正面看，连接电机的 UVW 相线和电源母线的连接器都是这种铜柱螺栓。螺栓外面还有不同的颜 色用来区分。通信和控制接 ...