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Yes, u can built a 5W flyback converter. Flyback with active reset can be used all the way up-to 300W. Check out powerint.com for flyback reference design. Flybacks are used because they are much more efficient (greater than 80%) than linear PS. No you cannot use a 60Hz line transformer as a...
Class 1 must have their chassis connected to earth ground whereas Class 2 is designed is such a way that it does not require safety connection to earth ground.
Each LED has 3~3.5V drop. If you need to meet SELV (operating output voltage below 60V), then you are better off having at least two...
I have attached an app note for forward converter. It is a buck stage and as input accepts dc voltage. Some calculation needed during the design of the converter is also explained in the app note.
In your application , the microcontroller can be used to change the reference voltage based on the...
Look at the AC-DC application especially the one's that have a range of 85-120Vac. I am guessing this is the range around the 160Vdc you keep on referring.
After rectification, peak voltage is 85*1.41=119V~120*1.41=169.2. To keep the bus voltage stable at the peak rectified voltage, a input...
First the specs for your design:
Things we know:
Input voltage: 160Vdc
Output voltage: Still unknown?
A pre-regulator is not a special circuit. It is a regulator like any other regulator (smps, linear supply etc). A regulator controls the output voltage or current, maybe both. A pre-regulator...
I attached a design example from ST which uses a PFC pre-regulator. A pre-regulator is a regulator that sets up the necessary condition for the downstream converter to work properly. In this case, a PFC pre-regulator is used to improve efficiency over a wide input range, improve power factor and...
The point I was making is the use of the linear regulator, unless you have a good reason to use it. If it is a single output supply and you are planning on using an SMPS for your design: you could easily design a single stage output flyback which would be isolated and give you the ability to...
From your post it seems the output voltage of the switcher is variable to maintain 2-4V across the input- output of the linear regulator.
Depending on the range of output voltage that is required: if output voltage is lower than input, then you can use buck converter and if the output voltage is...
It is an SMPS that is operating before a down stream supply. For example, using a two stage supply, PFC as the front end before a downstream SMPS - PFC would be considered a Pre-regulator since it is a switcher that is being operated before the downstream supply. The output bus of the PFC...
Karesz
Just like I mentioned, original poster was vague in his email. I had provided 2 solution which was also vague in nature.
From your last email, you are supposing that you know "Input supply voltage range(Min/max) & output power min/max situations and even all four situations for an...
Karsz
You are fixated on 9V input voltage. The original email was vague. Depending on the battery arrangement, one can arrange the batteries so that the input to output differential is small. The original email does not mention a specific source supply, hence my mentioning "the posting was...
Karesz
If you read through my comments, you will see I had mentioned "Try changing your spec from input voltage less than 9.6V". The gyst of the argument was to lower the input voltage to a small level so an LDO could be used. In other other words, a small input - output differential voltage...
The information as provided is vague.
First thing to remember is the voltage drop: to regulate from 9.6V to 5V, you are having a drop of 4.6V which gives you approx power loss of 4.6V*(amount of current being used by 5V). So the goal is to minimize the amount of current flow and decrease the...
I have never used qucs but Ngspice is a good simulation tool for linux. On the other hand, if you are not limited by operating system; try LTspice. It only runs on windows, good tool from Linear and has no limitation.
The attachment goes through a lot of the gate driver circuit. You will have to be a little more specific about the type of gate driver you are looking for?
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