Part Number: TL431 Other Parts Discussed in Thread: UC3845 Tool/software: The problem is as follows: 1.How is the cathode voltage of TL431 calculated in the attachment? 2.What is the minimum output voltage of TL431 cathode? 3.What is the formula for calculating…
Part Number: UC3845 Hello,
we want to implement with the driver IC UC3845 an flyback converter with isolated gate transformer to drive two mosfets of a big welding machine transformer.
The application is a welding machine with a transformator…
Part Number: UC3845 Hello,
I have similar waveform as mentioned in the post below
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/504194/problems-about-voltage-in-current-sense-pin-of-uc3845-applied-in-a…
Part Number: UC3845 Dear sir,
i want to required a design uto 250 watt dc to dc converter 12 o/p and 20A o/p current and input range should be 36v to 100 V dc
so sir kindly resolved this design issues and share me
thanks
sarfaraj
Part Number: UC3845 Other Parts Discussed in Thread: UC3907 , , UCC29002 Hi,
we are designing a boost converter with 3kw output ,for modularity I break down the power requirement of 1500W each . in order to provide 3000w i am just paralleling the…
Part Number: UC3845A Dear Sir,
I design a buck converter Input-40-90V, Output 12V,10A.
I used a Input capacitor 220uF 100V , I face a problem during testing at Input-84V, Output 12V,10A. that the input capacitor is degraded.
why this happned,
…
Part Number: UC3845 I have attached the schematic as per the ti reference, the output voltage doesn't seems to regulate at 16volt DC output. Whenever a small load is connected the voltage drops to 14.8. at no load the output voltage is 16 volt.
1. How…
Part Number: UC3845 1. Now make a three-way output power supply. The three ways are flyback topology power supply, and the output voltage of these three ways is 12v/0.6a respectively; 30V/0.6A; 150V/0.2A ,
2. Among the three circuits, the 12V output…
Part Number: UC3845 Hi,
Using flyback topology to make a DC-DC converter with below mentioned parameters:
Input range: 40VDC - 70VDC
Output: 18VDC, 3A
Output voltage is dropping around 3V-4V and it continues to drop slowly like a capacitor is…
