本发明涉及一种微分滞环比较器及其应用，属于信号处理、自动控制与电子设备领域。
The invention relates to a differential hysteresis comparator and the application thereof, and belongs to the fields of signal processing, automatic control and electronic equipment.
采用滞环比较器的直接功率控制系统的开关频率不固定，是实用化过程中需要解决的一个技术问题。
The switch frequency of the direct power control system using hysteresis comparator is not fixed, which is a technical issue in practical needing be solved.
不同于传统的模拟滞环比较器，采用基于三维空间矢量脉宽调制(3dSVPWM)法控制补偿电流的产生。
Instead of the conventional analog hysteresis comparator, the compensatory current is produced by 3-dimensional space vector modulation (3d SVPWM) technique.
为降低开关频率和减少开关损失，需增加功率滞环比较器环宽，否则引起瞬时有功功率和直流电压波动，影响系统的性能；
The hysteresis wide is widened for decreasing switching frequency and energy losses, which causes the pulsation of instantaneous active power and direct current voltage.
对滞环比较电流控制方法进行了深入分析，讨论了影响电力有源滤波器性能的关键因素。
Also, it analyzed the current control method of hysteresis current control, and gave several key factors which affect performance of the APF.
设计了以DSP为控制器、集成电路构成高速滞环电流比较器的电机调速系统。
The motor speed driving system USES DSP as controller and USES high-frequency delay-loop current comparator composed of integrated circuit.
提出了单相有源滤波器双滞环电流比较状态优化控制方法。
Double current hysteresis optimal state control method in single active filter is proposed.
该方法是在传统的两态滞环控制的基础上，增加过零比较器，通过优化逆变器的开关逻辑，从而实现滞环控制下并网逆变器的三态输出。
Through adding a zero-crossing comparator and optimizing the inverter switching logic, this method which is based on the traditional two-state hysteresis control can achieve three-state outputs.
本文分析了采用滞环模式控制的转换器的工作原理，介绍了几种传统的可用于DC-DC转换器的电流检测技术，比较了各种电流检测电路结构。
This paper analyzed the working principle of hysteretic mode control, introduced and compared several traditional current detection techniques which could be applied for DC-DC converter.
本文分析了采用滞环模式控制的转换器的工作原理，介绍了几种传统的可用于DC-DC转换器的电流检测技术，比较了各种电流检测电路结构。
This paper analyzed the working principle of hysteretic mode control, introduced and compared several traditional current detection techniques which could be applied for DC-DC converter.
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