Part Number: UC3825B Other Parts Discussed in Thread: UC3825 Hi,
Good Day. Using the UC3825B for a synchronous buck converter, what do you do with the RAMP and ILIM pins if slope compensation is not used?
Please advise. Thank you very much.
Best…
Part Number: UC3825B Dear Sirs
I am looking for a UCx825.ZIP file including the pspice model for this switching controller.
Could you plase help me?
Thanks and Regards
Part Number: UC3825B Other Parts Discussed in Thread: UC3825 Dear Sir/Madam,
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Part Number: UC3825B Problem with minimun Duty Cycle on 20KW Full bridge converter variable output Voltage, I probe current and voltage mode control and I found similar problem over high voltage line in and light load condition .
The power supply is…
Hi Animesh,
This is one of the older IC's from TI and there is no simulation model available for the IC. I suggest you look at some of the newer devices which start with LM or UCC and these parts may have SPICE based models available.
Regards
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Part Number: UC3825B
I am trying to derive the Transfer Function and Gain of PWM Modulator. Could any one please explain me how the Ramp is generated in PWM IC ? Why the 1.25V DC Offset is introduced in Ramp? In datasheet, Ramp valley Voltage is given…
Part Number: UC3825B I have designed Opamp based UVLO/ OVLO Circuitry with 20V Hystersis , which generates 5V Output Signal during undervolatge and Overvolatge, How to use this signal to disable the operation of UC3825B PWM IC ?
Thanks,
Other Parts Discussed in Thread: UC3825B We are designing a DC/DC converter using UC3825B. We need a compensator whose transfer function is given below.
4.096
G comp (s) = -----------------------------------
7.92e-6 s^2 + 0.0058 s + 1
Is it…
Part Number: UC1825A-SP Other Parts Discussed in Thread: UC3823B , UC3825B , UC1825A , UC3823A , UC1823A , UC3825A , UC2825A , UC2823B , UC2823A , UC2825B The datasheet of 5962-8768102EA includes a series of chips: UC1823A, UC2823A, UC2823B,UC3823A, UC3823B…
