Part Number: UC3827-1 Other Parts Discussed in Thread: UC2827-1 Tool/software: Hi, my question is related to the feedback loop, we have two stage conversion buck followed by pushpull. the control signal is fed the Buck switch but the sensed voltage is…
Tool/software: Hi, I have found this paper that does the current loop compensation differently and it states that this approximation of Rf/Ri=Gain is not accurate. this paper shows better representation of the poles and zeros of current loop. which one…
Part Number: UC3827-1 Dear sirs.
I am working with the UC3827-1 controller, for a high voltage psu.
In the breadboard stage, I have found that the output signal of the Buck stage, pin 2, has a minimum duty cycle of around 6-7%, and a max. duty cycle…
Part Number: UC3827-1 Other Parts Discussed in Thread: LM5041 Hi TI Team
I'd like to design a Buck Current Fed Push-Pull converter.
Is UC3827-1 the only choice?
And, do you have any Simulation & Calculation Tool or EVM circuit of UC3827-1
Thank…
Other Parts Discussed in Thread: UC3827-1 , UC2827-1 UC3827-1 INTERNAL OPAMP DATA + THERMAL RESISTANCE DATA
UC2827-1 - cURRENT FED PUSH-PULL. USED ON APPLICATION REQUIRING HIGH PRECISION AND THERMAL STABILITY. DATASHEET OR SEMINAR LACK INFORMATION ABOUT…
Other Parts Discussed in Thread: UC3827-1 Hello All,
I am looking to build a ~1KW offline buck- current fed full-bridge converter using the UC3827-1 controller. The issue is that my input voltage is going to be about 340 Vdc using 120-240 Vac input…
Hi Tim
There seems to be a consensus that a current fed converter is better for very high voltage applications. You get some protection against shoot through currents on the primary and you don’t need an inductor in the output
This e2e post discusses…
Other Parts Discussed in Thread: UC3827-1 Alas, I have a fully working supply using the UC3827-1 (buck, current fed). But, I have some alarm circuits that detect faults, and must disable the supply. I was trying to use the SS pin to disable, but it did…
Hi,
I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria.
As an example if you use a UC3842 it is a simple…
