Part Number: LM5023 Hi,
I tried to design a flyback converter using lm5023 with following specifications,
Vin=500 - 750 V
Vout= 5V, 5A
But when I enter these parameters on webench power designer it shows design cannot be created due to some reasons…
Part Number: PMP8740 Other Parts Discussed in Thread: LM5023 , UCC27517 , UCC28180 Tool/software: Hello, We are designing our charger based on the PMP8740 reference design. In the PFC Stage, the schematic is exactly as per the design. We tested the PFC…
Part Number: LM5023 Hello.
My name is Eunseok,
I have a question while looking at the block diagram of LM5023.
I know you're busy, but could you answer a few questions?
1. In soft start operation, there are two n-channel mosfets inside, but…
Part Number: LM5023 Tool/software: Hi,
I have SMPS project given the diagram below
Previously I had a ripple problem at the output which was solved by moving R23 to pins 1 and 2 of the opto guided by Ulrich...
However, I have a noise problem…
Part Number: LM5023 Other Parts Discussed in Thread: LMV431 , Tool/software: I have a circuit 5V 5A using LM5023. With LMV431, the power with no load results in a current of 1.09ma at 121VAC =131mw. Instrument Keysight 34461A. How can I reduce the power…
Part Number: LM5023 Other Parts Discussed in Thread: TL431 Tool/software: Hi,
I have SMPS project , where I have 6.5V @ 1.5A output as shown in the figure below:
However, the output with full load (around 1.3A) has this behavior as shown in…
Part Number: LM5023 Hi
I am planning to design a 19V,3A open frame adapter.
In this i am going to use LM5023 IC.
I have a doubt on how to choose the resistor for OVP on QR pin.
Kindly suggest a idea to calculate the resistor for R1 and R2.
In…
Part Number: LM5023 I need help with the following question. How to calculate RCD snubber for Quasi-Resonant controller, the application note AN4147 explained very well but fixed frequency. Quasi-Resonant with no load, the frequency is around 60KHz, but…
Part Number: LM5023
Tool/software: Webench Power Designer
Hi.
I recently made a 30V-145V to 24V DC/DC power converter. I used the output from Webench as reference and made small changes to the circuit for my design. I have tried both the Webench…
Part Number: LM5023 Other Parts Discussed in Thread: PMP41031 Tool/software: I was trying to design a multioutput flyback with Vin range : 100V to 700VDC and Vout : 18V, 5V, Pout : 65W (combined).
Is there a good reference material available to evaluate…
