Another advantage of COT variable frequency control architecture is that at light loads, the pulse rate is further reduced and high efficiency is maintained. Because pulses are only issued when the output load demands it, internal switching losses are minimized compared to a voltage or current mode architecture with a permanently switching clock.
In summary, COT control has become the de facto solution over traditional current and voltage mode control methods due to its faster transient response, higher efficiency, fewer components, and ease of design.
Session popupval Session textval Session Titefor popup. Remember me. Forgot password? Log in. Don't have an account? Sign up. Password Strength: No Password. Create Basic Account. Already have an account? Forgot Password. Please enter your email address below to receive a password reset link.
Go back Go back. Log in to continue. Get early access to new products, datasheets, and free samples. Share this article. In this way, the redundancies found in the conventional approach can be reduced and optimizations can be made to save chip area and power consumption.
An 8-bit digital inductor current sensor has been designed and fabricated with UMC 0. The measurement results show that the digital sensor can provide digital inductor current information with a conversion time of ns. This can be used by a buck converter with a switching frequency up to 4MHz. The digital sensor has linear and monotonic input-output transfer curve properties, with an LSB of 6.
Secondly, when DCMCs require inductor current ripples as feedback signals, analog RC inductor current sensors can be used for sensing the ripples. However, the passive RC components are too bulky to integrate on-chip and the DCMCs cannot use the analog ripples for the control purpose unless extra ADCs are available to quantize them. Therefore, another digital inductor current sensor is designed in this thesis for obtaining the ripples in the digital domain.
As compared to the existing designs, it does not require extra ADCs or knowledge of the inductor value. A ripple-based digital controller is also designed to demonstrate how the digital sensor can be utilized. Both the digital sensor and controller are fully synthesizable with UMC 0.
WordPress Shortcode. Share Email. Top clipped slide. Download Now Download Download to read offline. Manmeet Singh Follow. Monolithic implementation of parasitic elements. Integrated parasitic elements at high frequencies. Metal Oxide Semiconductor Fet Mosfet. What to Upload to SlideShare. A few thoughts on work life-balance.
Is vc still a thing final. Related Books Free with a 30 day trial from Scribd. Related Audiobooks Free with a 30 day trial from Scribd. Outstanding Leadership Stan Toler. Sensorless Observer Approach. Subharmonic oscillation are eliminated.
0コメント