| 1. | Position control of d. c. motors has been done by means of pulse width modulation . 直流电机位置用脉冲宽度调制法控制。 |
| 2. | Study on method of the digital pulse width modulation 数字脉宽调制方法的研究 |
| 3. | Pulse width modulation control system ; pwm control system 脉冲调宽控制系统 |
| 4. | Technology of pulse width modulation in varying - velocity motor 异步电机变频调速中的脉冲宽度调制技术 |
| 5. | Circuit design of feeding wire system based on tl494 by pulse width modulation technology 等速送丝电路的设计 |
| 6. | Pulse width modulation inverter 脉宽调制转换器 |
| 7. | Pulse width modulation valtage - stabilized power supply for light sources of instruments 仪用灯的脉冲宽度调制稳压电源 |
| 8. | Pulse width modulation pwm 脉波宽度调变 |
| 9. | Pwm pulse width modulation 脉冲宽度调制 |
| 10. | Sine pulse width modulation matrix converter based on digital signal processor 基于数字信号处理器的正弦脉宽调制矩阵变换器 |