Part Number: UCD3138PSFBEVM-027 Hello.
When I was testing the UCD3138PSFBEVM development board, I encountered an abnormal phenomenon.
The manual says Vin’s overvoltage protection point is 410V,
When I tested vin at 405V, I found that the output…
Part Number: UCD3138PSFBEVM-027 Tool/software: Code Composer Studio Hello experts ,
In PSFBFirmware-1.1 programme, I find that POUT_SCALER equal 14850.
system_define.h
#define POUT_SCALER (14850)
I can't understand why POUT_SCALER is set.Thanks for…
Part Number: UCD3138PSFBEVM-027 Other Parts Discussed in Thread: TIDM-PSFB-DCDC , UCC27424 Hello.
On the schematic of UCD3138PSFBEVM and TIDM-PSFB-DCDC, the shunt resistor is located in low sided.
Also, its looks like it measure the voltage from output…
Part Number: UCD3138PSFBEVM-027 Hello. I imitated the power supply prototype made by the UCD3138-PSFB development board. The light load 3A starts normally.The output voltage Vo is the red waveform in the figure below.
The waveform diagram is as follows…
Part Number: UCD3138PSFBEVM-027 Hello. Recently imitated TI's PSFB EVM development board and made a 380V to 48V/20A power supply with a frequency of 200kHz.
When testing asynchronous rectification, the circuit is normal.
When testing synchronous rectification…
Part Number: UCD3138PSFBEVM-027 Other Parts Discussed in Thread: UCD3138 Hello,
I would like to use the UCD3138 for a new design of Phase Shifted Full Bridge.
In this design the Vbus is 800V and the Fs should be around 70kHz.
I am trying to configure these…
Part Number: UCD3138PSFBEVM-027 Other Parts Discussed in Thread: UCD3138 ,
Hello.
I use UCD3138 PSFB sample program.
The value before clamping Yn of Filter0 may be negative, but In the sample program, the lower limit is clamped at 30000. (#define INIT_FILTER_0_YN_CLAMP_LOW…
Part Number: UCD3138PSFBEVM-027 Hello.
I just bought a UCD3138-PSFB-EVM27. I tested it and found that its waveform is consistent with the user manual. For example, the output voltage has no overshoot during startup and the no-load loss is about 32W.
…
Part Number: UCD3138PSFBEVM-027 Other Parts Discussed in Thread: UCD3138 Hello.
I recently tested the undervoltage protection function of the UCD3138 PSFB EVM27 development board.
I look at the source code:
#define VIN_ON (346)//translated(2674) #define…
Hello Neal,
I do not see any problems with interleaved connection. You can customize the phase with respect to each other as long as you use a communication bus to sync them together.
For the Single Phase Shift, I think that is possible but it may depend…
