| 1. | The process of designing the high frequency pulse transformer is supplied 介绍了其中高频脉冲变压器的设计。 |
| 2. | Experimental study of stirling - type high frequency pulse tube refrigerator 重力式热管换热器串联组件的实验研究 |
| 3. | Development and application of electric dehydration power supply equipment with high frequency pulse 高频脉冲原油电脱水供电装置的研制及应用 |
| 4. | A prototype for 3000va 27vdc / 115v400hzac three - phase aviation static inverter with high frequency pulse dc link is designed and successfully developed 设计、研制成功了3kva27vdc 115v400hzac三相高频脉冲直流环节航空静止变流器。 |
| 5. | The operation principle of the aviation static inverter with high frequency pulse dc link is discussed , and the design criterions of the key circuit parameters are gained 本文论述了高频脉冲直流环节航空静止变流器的工作原理,获得了关键电路参数设计准则。 |
| 6. | The three - phase aviation static inverter with high frequency pulse dc link is made of three independent aviation static inverters and has the advantages such as strong function with unbalanced load and easy realization for module 三相高频脉冲直流环节航空静止变流器由三个独立的航空静止变流器构成,具有带不平衡负载能力强、易于实现模块化等优点。 |
| 7. | The magnetic reset by each pulse is proposed in this paper . that is how to control modulation ratio and let the increase of magnetic flux with each high frequency pulse reset to zero . so it will avoid magnetic flux saturation 本文采用逐个脉冲磁复位技术,就是在每个高频脉冲之后及时采取措施,使每一个高频脉冲引起的磁通增加都回复到零,从而避免磁芯磁通饱和。 |
| 8. | The experience results indicated the reliability of this kind of thermostatic control system . the analysis and compare about modern dielectric loss measuring methods are presented on chapter 3 , and the zero - crossing testing phase discrimination method is adapted as the measuring method of this measuring system . furthermore , applied high frequency pulse technique , channel self - correction technique , anti - harmonic technique are used to increase accuracy and reliability of measurement 本文对现代介质损耗测量技术进行了分析与比较,采用过零鉴相比较法作为介质损耗测量方法,并结合外施高频脉冲技术、通道自校正技术、抗谐波技术,设计了高精度介质损耗测量电路,有效提高了介质损耗测量的精度,减小了测量误差。 |
| 9. | By using msp430 micro controller unit and cpld technology , this method realized twofold frequency phase ranging : the rough measurement of the distance is realized by countering high frequency pulses which are filled in discriminating phase pulses ; the accurate discriminating phase pulses are converted by using the method of time to voltage conversion , and then the adc device samples the converted voltage , so the accurate measurement of the distance is obtained by processing the adc samples through micro controller unit 该方法通过msp430单片机和先进的cpld技术实现双频测相:粗测通过采用对鉴相脉冲填充高频脉冲的办法来实现;精测则利用时间-电压转换法对鉴相脉冲进行转换,然后由模数转换器adc对转换电压进行采样,通过单片机对adc的输出值进行计算处理获得精测值。 |
| 10. | A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter . each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge . the control strategy of voltage mode pwm forwardback is adopted by the former , and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later 每个独立的航空静止变流器采用占空比扩展有源箝位正激式高频脉冲直流环节电路拓扑,由占空比扩展有源箝位正激式高频脉冲直流环节电路与dc ac逆变桥级联而成,前级采用电压型pwm前馈控制技术,后级采用三态dpm电流滞环控制技术。 |