Part Number: UCC28711 Other Parts Discussed in Thread: TIDA-010000 , TIDA-00173 , UCC28740 Tool/software: Thank you very much for your help. Thanks to you, I am fully engaged in the development of SMPS as recommended by TI.
To use SiC MOSFETs (before…
Part Number: UCC28711
Tool/software:
Hello!
I am currently experimenting with an SMPS based on the "400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives."
Contrary to the guide, I am not…
Part Number: UCC28711 Tool/software: UCC28711 IS NOT GIVING DRIVE PULSES AND NO VOLTAGE AT NTC PIN EVEN IT IS KEPT OPEN, No voltage at VS pin and RS1=110K ohm RS2=31.6K
Part Number: UCC28711 Other Parts Discussed in Thread: TIDA-00173 , Hi, I always receive a lot of help.
I am referring to the document number TIDA-00173 and to create a higher capacity (approximately 100W) flyback.
I'm configuring a flyback using…
Hi Seungpyo,
It is used for internal bias voltage, I am not sure how it is implemented internally (may be something like voltage controlled current source).
Regards,
Harish
Part Number: UCC28711 Other Parts Discussed in Thread: UCC28740 Hi Team,
As there is a method to start-up VDD by HV pin, and when VDD reaches the 21-V UVLO turn on threshold, the controller is enabled, the converter starts switching and the start-up switch…
Part Number: UCC28711 It is understood that the switching frequency of UCC28711 varies with output. (I have seen that UC28C40 is used by connecting resistors and capacitors for user settings).
Looking at the datasheet of UCC28711, there are frequency…
Part Number: UCC28711 Tool/software: Hello! I'm curious about what elements need to be changed and if there are any reference materials available if you want to increase the capacity to 100W in the topology of a 400- to 690-V AC Input 50-W Flyback Isolated…
Part Number: UCC28711 Other Parts Discussed in Thread: TIDA-00173 , , PMP22288 Dear Sir,
As per application note : TIDA-00173 (400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives), shows RC filter in voltage feedback…
Hi Bert,
Thank you for the interest in UCC28711.
Yes, AUX can be loaded with the extra 100mA. But there will be regulation issues at very iight load, as aux winding could be loaded more when compared to the main winding.
Regards,
Harish