In theory, since the set/reset of PWM cycle happens at every peak current, that does not guarantee 50% duty cycle. Does the peak current mode control controls the duty cycle instead of the phase shift? Thank you. Regards, Ivan 0 Kudos Reply ...
The sample and hold effect, or quasi-digital (discrete) behaviour, of constant-frequency peak current-mode control (PCM) is pulse-width modulated DC-DC converters is presented in a manner consistent with the physical behaviour of the circuit. This approach develops a transfer function using contro...
SNVA542 CURRENT-MODE MODELING FOR PEAK, VALLEY AND EMULATED CONTROL METHODS Reference Guide for Fixed-Frequency, Continuous Conduction-Mode Operation Robert Sheehan Principal Applications Engineer National Semiconductor Corporation Santa...
We will also demonstrate that phase margin loss disappears if current is sensed at the inductor instead of the switch. In both cases, the $RC$ filter results in a different frequency response than the one predicted with the classical peak current mode theory. These differences are analyzed in ...
Analysis of Slow-Scale Instability in Boost PFC Converter Using the Method of Harmonic Balance and Floquet Theory In this paper, the slow-scale instability in a boost PFC converter under average current mode control is studied via the harmonic balance method and floque... F Wang,H Zhang,X Ma...
This paper presents an emulated peak current-mode control topology targeted for a high voltage buck converter for automotive applications, where one of the key challenges is to protect the devices from the high voltage stress. The proposed controller scheme eliminates the issue of the voltage stress...
In this brief, a peak-current-mode control based on the closed-form loop compensator design is proposed to integrate with a current-sharing circuit to auto... JJ Shieh - 《IEEE Transactions on Circuits & Systems I Fundamental Theory & Applications》 被引量: 56发表: 2003年 Bipolar Pulsed-DC...
I decided to choose open-loop peak current mode control, which has simple circuit. Open-loop structure is easy to design, and stable. Microchip’s HV9910B and Diodes AL9910/A are similar open-loop peak current mode controller. They have the same internal circuit and the same pin out, and...
CURRENT-MODE MODELING FOR PEAK, VALLEY AND EMULATED CONTROL METHODS Reference Guide for Fixed-Frequency, Continuous Conduction-Mode Operation Robert Sheehan Principal Applications Engineer National Semiconductor Corporation Santa Clara, CA Current-Mode Control For current-...
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