Part Number: PMP41009 Other Parts Discussed in Thread: UCC28740-Q1 Hi,
I got some questions about UCC28740-Q1(Design reference PMP41009)
1. The recommended primary side ratio Nps of the transformer is 43.86, But this means a too much primary inductance…
Part Number: UCC28740-Q1 I want to design a two switch flyback (400V-15V 1.5A).I have come across the IC UCC28740-Q1.But the maximum switching frequency of this IC is found to be 100Khz.We need a bit higher swicthing frequency.Could you suggest any alternate…
Thanks for your reply.
And i wana know that dose the low duty ratio affect the stability of the control loop?
Can The resistances and capacitors be set the same as PMP41009 while I used a different optocoupler and adjustable shunt regulator than PMP41009…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 , Hi,
I want to use SiC mosfet as primary side switch. UCC28740-Q1 is designed to drive only Si mosfet gates directly. When I try using a separate gate driver IC or a push-pull gate drive…
Part Number: UCC28740 Hello,
The minimum voltage for Start-Up with UCC28740 is mentioned as 100 V in the Data sheet but for our application we would want it to start at a lower voltage. Would it be possible to do that ?
Please advice,
Thank You
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 Hi,
I tried simulating the UCC28740 simplis netlist provided on the product page. Although the model says that it can work with the simplis versions higher than 7.2d, while running in 8…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 , UCC28730 , UCC28742 Hi all,
Is there an Ltspice or pspice model available for UCC28740. On the product page I could find only a Simetrix/Simplis model which is not easily convertible to…
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 Hi team,
UCC28740-Q1 Brown out and brown in voltage differs a lot. Is there any way to decrease this delta voltage?
Thanks
Scarlett
Part Number: UCC28740-Q1 Other Parts Discussed in Thread: UCC28740 Hi team,
My customer ask for training for this device, so could you provide presentation material with flyback topology introduction for us?
Then we can support this request.
Thanks