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making two half bridges a "whole" h-bridge ir2103 and 55v bidirectional current

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Maglatron

Jul 12, 2023
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I need to know how to ocsillate the current between +55v and reverse. I have been advised to use multiple IR2103 half bridge drivers in conjunction with an arduino and 4 digital pins need the guidence to setup this circuit. Can anybody help. The more help I get the easier it is to understand the manual! I am designing a machine that puts out constant 55v ,and I want to put it through an H-bridge style setup to have forward and then reverse the polarity at a rate of 50hz, by utilising IR2103 half-bridge's and arduino. after hat the 55v at 50hz will excite a transformer with turn ratio 1:4.182 to achieve approximately 230v ac. thanks for any help in advance! in my video the volts/speed are slower and so are not showing the 55v. I need spoon feeding for this next part in my project also the project has come a long way since these pictures were taken, I have and extra coil added now and also a 16000uf capacitor bank where the smoothing capacitor is normally situated. any questions or help or advice welcomed. thanks
 

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Maglatron

Jul 12, 2023
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i need to a the Half-Bridge IR2110 to LTSpice please can somebody explain how? Thanks in advance
 

kellys_eye

Jun 25, 2010
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Not sure why you were advised to use multiple half bridge devices. Use a full bridge. The 55V supply will be across the bridge supply and the transformer primary (low voltage side) across the bridge itself. The Arduino will deliver the required gate signals to switch the appropriate gates themselves although you can also do this with a simpler set of discrete circuitry. Not sure if you are using the Arduino to do regulation by PWM - in which case stick with the Arduino - but for a 'fixed' output something simper is ok.

Find a suitable full bridge device and check out the datasheet for it where as much information as you need will be found.
 

Alec_t

Jul 7, 2015
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As a side issue, why do you have all the coils commoned as shown in the schematic? That bottom left diode could get overloaded if energised by more than one coil at a time.
 

Maglatron

Jul 12, 2023
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found and installed the IR2110 , now I am really struggling to find a UF4007 are there any equivalents
 

Maglatron

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ok sorry i did not read your messages before my last post here is the schematic i'm working from if its not that good could you provide me with an alternative
 

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Maglatron

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also I have fitted heavy duty diodes for the 4 coil rectifier
 

Maglatron

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yes but I can't check now I work on my machine mondays and fridays,I just got a load of different diode's in loads of different rating and put in some of a moderate size. Also I can't find the ltspice models for the UF4007 ultafast switching diode but I was thinking because my circuit is only oscillating at 50hz can i use standard 1n4007's instead
 

Maglatron

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I bought a new camera and it will be here in the next couple of weeks, and i waill take new pictures of where im at
 

kellys_eye

Jun 25, 2010
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The use of high(er) voltage diodes is to suppress any back EMF that itself can be of the order 100's of volts. The 4007 might be taking the issue to extremes (it's rated at 1000V) but the 4006 or 4005 would probably be ok in this application. People often spec the 4007 as the cost difference between it and the slightly lower voltage devices is negligible.
 

Maglatron

Jul 12, 2023
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I want the diode model .lib file for the UF4007 for the next part of my project anyone know where to get it?
 

Maglatron

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I have decided to use in place of the uf4007 some vs-e7mh0112's instead
 

Maglatron

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I have a vigortronix 146 500 255 and I want to know the inductance and resistance of the primary and of the secondary
 

Maglatron

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so im trying to make an osccilator in ltspice that pulses 50% duty cycle and 50hz to turn on a set of pins high and low I want one to be off when the other is on and when the other goes off I want to other to turn on with the fastes switching speed possible can you guys help. thanks
 
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