AD8662是一款低噪的CMOS运放，在RDC参考设计里被ADI工程师，选用上了作为激励驱动。
Excitation Buffer
A buffer is typically required to drive the resolver’s low-impendence inputs. This excitation buffer can be implemented in many ways, two of which are shown here. The first circuit is commonly used in automotive and industrial designs, while the second simplifies design by replacing the standard push-pull architecture with a high output current amplifier.
The high-current driver shown in Figure 11 amplifies and level shifts the reference oscillator output.
The driver uses an AD8662 dual, low-noise, precision op amp and a discrete emitter follower output stage. A duplicate buffer circuit provides a fully differential signal to drive the resolver’s primary winding.
若项目时间紧，对质量要求更高，建议尽可能按ADI参考设计来做（设计更行业内主流；量产后，还可以获得更好的技术/价格支持）。
AD8662是一款低噪的CMOS运放，在RDC参考设计里被ADI工程师，选用上了作为激励驱动。
Excitation Buffer
A buffer is typically required to drive the resolver’s low-impendence inputs. This excitation buffer can be implemented in many ways, two of which are shown here. The first circuit is commonly used in automotive and industrial designs, while the second simplifies design by replacing the standard push-pull architecture with a high output current amplifier.
The high-current driver shown in Figure 11 amplifies and level shifts the reference oscillator output. The driver uses an AD8662 dual, low-noise, precision op amp and a discrete emitter follower output stage. A duplicate buffer circuit provides a fully differential signal to drive the resolver’s primary winding.
若项目时间紧，对质量要求更高，建议尽可能按ADI参考设计来做（设计更行业内主流；量产后，还可以获得更好的技术/价格支持）。
举报
