Part Number: UCC28220 We have some problems to clarify about IC ucc28220.
We use simplis to build ucc28220 model to simulate Interleaved boost converter. After the parameter adjustment for compensation, the Bandwidth simulation result can only be up to…
Part Number: UCC28220 Hello,
I am a bit confused about the lowest PWM switching frequency.
On one side, from the datasheet:
8.3.3 Oscillator Operation and Maximum Duty Cycle Setpoint The oscillator uses an internal capacitor to generate the time base…
Part Number: UCC28220-Q1 Other Parts Discussed in Thread: UCC28220 Hello,
I want to use this controller for an interleaved flyback.
I am planning to use a Current Transformer for the current sensing.
But I am wondering about the accuracy of the current…
Part Number: UCC28220-Q1 For the design and control of a full bridge weinberg converter (full bridge boost with start up winding, hard switched), we are planning to use UCC28220-Q1 to control the two full bridge legs 180 degree out of phase.
Startup mode…
Part Number: UCC28220-Q1 Other Parts Discussed in Thread: UCC28220 We use TI UCC28220D in our interleaved flayback converter. We have a issue with the switching frequency accuracy. Our design requirement is 200kHz +/- 15%. We design with Rchg = 21.0k 0…
Part Number: UCC28220 Hi
I use UCC28220 on the 6KW converter.
Specifications are as below.
-Input: 390V(PFC out)
-Output: 48V 125A(6kw)
Questions
: If you maintain the load, it will work normally, but if you change the load, the MOSFET will die.(ex_ 0A…
Part Number: UCC28220 Dear Team,
Here is Kevin from Delta Taiwan team.
Customer is looking for two phase interleave PWM controller with voltage mode.
Can the customer maximum the slope compensation and connect the current sense to the ground, so this…
Part Number: UCC28220 Hi Team,
Good day, we received inquiry from customer and want to design a 15kW interleaved two-phase boost converter with an output of 550V and an input varying from 180V to 320V using UCC28220. The voltages V1 - V4 are received by…
Part Number: UCC28220 Other Parts Discussed in Thread: UCC28221 Hi,
Our customer is using UCC28220. He finds that there is no Soft-Start function. He applies the power on VDD first and then increasing VIN voltage to 240V. Could you please tell us how…
Part Number: UCC28220 Other Parts Discussed in Thread: LM5032 I’m writing for the following questions.
(1) I would like to apply UCC28220 in interleaved 2-FET forward converters while Dmax < 0.5 for each channel.
à Can Dmax < 0.5 (e.g. 0.48)…