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Hi,
I need a inductor part that is rated for 1000Volts. Can I use two inductors ( rated for 500V and half the inductance of required value ) in series?
Hi,
We working on power supply design and we are referring to the reference design from Texas Instruments.
The feedback pin will only senses the output voltage during the OFF time of the Q1 MOSFET ( since D2 will block the negative voltage ).
What is the type of feedback used here?
How to...
Thank you for the information.
I have seen the 1A peak current information. But my doubt is whether the IC can support 1A of current continuously.
In our design ( Non synchronous Buck converter, 920V input, 15V output ) the switching frequency is 46kHz and the minimum ON time of MOSFET is 354...
Hi,
We are planning to use the PWM IC part from Texas Instruments UCC28C42D for driving MOSFET ( IPD90R1K2C3 from Infineon ) in an SMPS circuit.
the PWM IC datasheet does not provide any information on the current output capability of the Gate output pin.
How can we ensure that the PWM IC can...
Thank you all for your valuable comments. So my understanding from this is, when we have to use inductor for high voltage the only concern is the isolation resistance of copper wire coating and isolation between the two pins of the inductor.
I think even though the inductor experience high...
Hello,
Let's consider this buck converter has 300V as input and designed to have 50V as output.
What is voltage rating of the inductor I should use?
During the ON time of the MOSFET the Inductor experiences 300V-50V=250V. So should I use
inductor that has voltage rating of 250V or more?
I have...
I am using MAX3221MDBREP in my design. It was working fine. Suddenly is not working. When i checked with DSO, RX side is working ( RS-232 level to TTL level).
But TX side is not working (TTL level to RS-232). Getting 0 Volts at TX pin (DOUT). While visual inspection the top of the IC has brown...
I am using SN74AHC244MPWREP as TTL input buffer . VCC is connected to 3.3 Volts. Is it okey if i connect 5V TTL signal to this chip?
Does it work perfectly like 3.3V TTL?
I have 350V to 400V DC input and i need 300V constant output having 15A current ratting.
so wattage will be 4500 Watts. So for this wattage a synchronous buck is the right solution??
What are the possible alternatives??
I created PWM signal in dsPIC30F3011 and i am getting these waveforms . There are spikes during off period of value around 1 volt. So is that a problem??
Because i am going to connect this to a buck converter. So if both high side and low side PWM turned on at the same time it will blow the...
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