| 1. | But the increase of switching frequency results in higher switching loss
而传统变换器开关频率的提高必然带来开关损耗的增加。 |
| 2. | In order to minimize size and weight of the converters , switching frequency must be increased
为了减小变换器的体积和重量，必须提高开关频率。 |
| 3. | Sfvc is a simple control system that works at fixed frequency and achieves good effect under low switch frequency
采用了固定步长，在开关频率不高时仍能取得较好的控制效果。 |
| 4. | This results in large ripples in the torque and the stator flux linkage , and nonconstant switching frequency
这将导致转矩和定子磁链较大的脉动以及逆变器开关频率的不恒定。 |
| 5. | The circuit of this scheme is simple and novel , which can be used to obtain the continuously variable switching frequencies
该方案电路简单新颖，可利用其获得连续变化的开关频率。 |
| 6. | But the switching loss is increased as the switching frequency is improved and so the converter efficiency is decreased
但随着开关频率的提高，硬开关的开关损耗增加，变换器的工作效率随之下降。 |
| 7. | If rosc pin series a resister to vdd , or connect a capacitor to vss , the switching frequency can be adjusted
切换频率是由osc频率决定，以rosc脚串联电阻到vdd ，可调整切换频率，电阻值减少，频率增加。 |
| 8. | Output over - voltage protection and a 1mhz switching frequency allow for the use of small , low cost external components
内部过压保护电路和1mhz的开关频率使得用户可以选用体积更小、成本更低的外部元件。 |
| 9. | The high switching frequency allows the use of small surface - mount capacitors , saving board space and reducing cost
高的开关频率允许选用小的表面陶瓷电容,可节省板级面积、降低成本和减小输出电压纹波。 |
| 10. | Switching frequency and error of current tracking are estimated , so resolve how to limit the frequency as setting parameter
对电流控制两态调制逆变器的开关频率、电流跟踪误差作出了估算，解决了参数设计时如何限定开关频率的问题。 |
