Part Number: UC3845 Hello,
I am using UC3845 PWM IC for flyback topology for 24v5 amps Output .Here I noticed while continuous current of 4amps @24V IC getting heat, around 80 degree centigrade.
Input Voltage :40VDC
Output Voltage 24V @ 5AMPS.
Vcc Start…
Part Number: UC3845 Hello,
We are currently using one of your DC-DC converter ICs (UC3845) for a 5V/21Watt power supply.
This power supply is primarily employed in a telecommunication system where noise is a significant issue throughout operation.
To…
Part Number: UC3845 Hello Team,
I would like to inquire about the feasibility of developing a flyback converter with an adjustable output voltage using the UC3845 IC. Upon reviewing its datasheet, I noticed that the Error Amplifier voltage reference is…
Hi Christian.
You can use a PWM controller driver (like UC3845) to drive the PWM signals of the high side MOSFETs (low side too) at the secondary side. No need to use a switch. Also, no need to tie the primary winding to +12V rail. You can tie it to OUT…
Part Number: UC3845 Other Parts Discussed in Thread: UCC3801 I am making a power supply and i am using UC3845 8-pin IC. I want to simulate my schematic in TINA free trial version. How can i get UC3845 in the tool.
2. Can i use UCC3801 as an alternative…
Part Number: UC3845
Pls find the below link for recommended design for 12V-10A by TI Web power Designer
https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=5740555433F637E3
In Above Design, Shown transformer(T1) design details we couldn’t understand…
Part Number: UC3845 Hello,
I have designed a flyback circuit and I have used UC3845 for the following configuration input 12-18 V. Output 48 V 1 A. I attached the Altium schematic pdf file below.
However, I could not get any gate signal from to UC3845…
Part Number: UC3845
Hello,
I have designed a flyback circuit with the webench schematic. I have used UC3845 for the following configuration input 12-18 V. Output 48 V 1 A. I attached the pdf file below.
Could you tell me how to calculate sense resistor…
Part Number: UC3845 Other Parts Discussed in Thread: TL431 Hello,
I have designed a flyback circuit with the webench schematic. I have used UC3845 for the following configuration input 12-18 V. Output 48 V 1 A. I attached the pdf file below.
Could you…