A boost power factor correction (PFC) in continuous conduction mode (CCM) by the digital peak current-mode control method with bifurcation control is discussed in this paper. The proposed method is used to prevent the inductor current bifurcation behavior, which is caused by sub-harmonic ...
而Peak Current Control Mode PSFB 在电路上则多了一个变压器电流侦测的比流器,而在 PWM 上,因为采取控制变压器磁化电流的方式,因此 PWM 不再是固定的 50% Duty,而是以电流峰值来决定开关的运作。实际运作上,与传统 PSFB 相同,一样存在一个固定臂,而另一组相移臂则在电流上升顶到目标时进行开关状态的切换。 ...
而Peak Current Control Mode PSFB 在電路上則多了一個變壓器電流偵測的比流器,而在 PWM 上,因為採取控制變壓器磁化電流的方式,因此 PWM 不再是固定的 50% Duty,而是以電流峰值來決定開關的運作。實際運作上,與傳統 PSFB 相同,一樣存在一個固定臂,而另一組相移臂則在電流上升頂到目標時進行開關狀態的切換。 ...
Analytical investigations confirm the results achieved by simulations, and the control parameter can also be calculated or predicted assuring the stable operation of PFC boost converter 展开 关键词: instability power-factor-correction peak current-mode control bifurcation ...
Two typical techniques for power factor correction (PFC) are peak current mode control (PCMC) and hysteresis current mode control (HCMC). These control techniques are evaluated based on control strategy, circuit components, and total harmonic distortion of input current. The single phase ac-dc ...
(PFC) boost converter under peak current control.The second topic is: the stroboscopic mapping equations of the converters.In the second topic,our small contribution is that we use the least squares method to solve the constraint equation for the switching conditions of the converter,which is ...
This work presents a novel mixed-signal control scheme for a boost power factor correction (PFC) rectifier. The digital controller modulates the inductor peak current to produce a low-distortion ac line current in discontinuous conduction mode (DCM) and continuous conduction mode (CCM), without the...
Signal peak detector and detection method, and control ic and method for a pfc converter The control integrated circuit comprises a signal peak detector for detecting a peak value of the input signal to the pin to obtain the direct-current ... Y Lai 被引量: 0发表: 2016年 加载更多研究点推...
The architecture is based on a single-stage LLC resonant converter without PFC using the new L6699 resonant controller. The L6699 integrates some very innovative functions such as self-adjusting adaptive dead time, anti-capacitive mode protection and a proprietary "safe-start" procedure which ...
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