The key technology of realization of quick and reliable design of controller is to apply the limited unipolar pattern PWM system as the primary channel of the fully-digitized controller.
采用受限单极模式P WM系统作为全数字化控制器主控通道，是实现控制器快速可靠设计的关键技术。
2
Based on the power supply for railway signal system, this dissertation investigates an inverter controlled by the strategy of unipolar modulation.
本文以铁道信号电源为背景，研究了一种单极性调制的逆变电源。
3
Macau's multiple education system is likely to decline, culminating in a unified or a unipolar situation without proper guidance and necessary improvements.