help with IR2110 chips

[Maglatron]

Ordered the pieces for this part of the project wiil keep you posted!

 

[Maglatron]

My pieces have arrived in the post now, I will be putting the circuit together tomorrow and take pictures!

 

[Minder]

If making a board, you will need to specify the power sources with a power-flag.
e.g.

 

[Maglatron]

Thanks i'm using proto-board or strip board but I shall update the ltspice file.

 

[Maglatron]

I'm going to be building it Monday now because I have restrictions on time to solder!

 

[Maglatron]

Having trouble making time for this H-bridge part of my project. I just want to know one thing, I was going to put a 20ohm power resistor (500w) in line with the positive from the rectifier to the 55vdc then in to the the input of the inverter, to avoid shorting, is this necessary also if i do put the 20ohm resistor in then I want voltage after the resistor to be 55, so my question is do I need to have a higher starting voltage? if that makes sence because of voltage drop, and one more thing how much resistance will the inverter have? thanks

 

[Maglatron]

does the voltage stay the same and the resistor only controls current?

 

[Maglatron]

Any ideas, anyone?

 

[Maglatron]

??

 

[Delta Prime]

??

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[Maglatron]

thank you!

 

[Maglatron]

I cant sign up to all about circuits because I dont have email access and therfore cant verify email address any chance you can answer my question here?

 

[Delta Prime]

does the voltage stay the same and the resistor only controls current?

You have come a long way in your project, you should be proud also there's no shame in reviewing. Perfect example is me typing this in bold font I can't get it to stop now... I got to figure out why? darn it. A review is necessary.
And no one has abandoned you by not answering your questions immediately. Patience my little Padawan.

 

[Maglatron]

I like the colour wheel with the relationships between power resistance voltage and current! it's nice.

 

[Maglatron]

does the voltage stay the same and the resistor only controls current?

So can you answer the original question? much appreciated.

 

[Martaine2005]

So can you answer the original question? much appreciated.

The ‘inline’ series resistor will have a voltage drop. It WILL lower the voltage depending on resistance. The ‘pretty colour wheel’ is your friend. The series resistor will then supply a constant current (providing supply voltage stays the same).
So to calculate your resistor, you need to know what current is required and then divide it by voltage.
ie Resistance = Voltage divided by Current.

Martin

 

[Maglatron]

The ‘inline’ series resistor will have a voltage drop. It WILL lower the voltage depending on resistance. The ‘pretty colour wheel’ is your friend. The series resistor will then supply a constant current (providing supply voltage stays the same).
So to calculate your resistor, you need to know what current is required and then divide it by voltage.
ie Resistance = Voltage divided by Current.

Martin

do you mean divide the voltage by current to arrive at resistance?

 

[Martaine2005]

do you mean divide the voltage by current to arrive at resistance?

Exactly. It’s written as R=V/I.
That’s why Ohms law is such a basic necessity.

Martin

 

[Delta Prime]

Exactly. It’s written as R=V/I.
That’s why Ohms law is such a basic necessity.

Martin

 

[Maglatron]

You have come a long way in your project, you should be proud also there's no shame in reviewing. Perfect example is me typing this in bold font I can't get it to stop now... I got to figure out why? darn it. A review is necessary.
And no one has abandoned you by not answering your questions immediately. Patience my little Padawan.


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View attachment 61383

not fishing for compliments but You have come a long way in your project what did you mean by that please?