Hi, I built an amp that uses two smps 12v supplies fed into two 12v to 60-90v stepups creating a dual +-60-90v power supply for an irs2092s amplifier
If i wired 2 irs2092s chip amps in parallel to the dual supply instead of one, could I wire the amplifier outputs (bridge?) to get over 500w and how?
At the moment I'm just using one irs2092s amp that succesfully supplies a subwoofer with max 500w
Also I have the option to set the supply voltage from +-60v to +-90v
What's the safest voltage of the irs2092s amp that provides the best performance
Amp
Stepups
Smps
If i wired 2 irs2092s chip amps in parallel to the dual supply instead of one, could I wire the amplifier outputs (bridge?) to get over 500w and how?
At the moment I'm just using one irs2092s amp that succesfully supplies a subwoofer with max 500w
Also I have the option to set the supply voltage from +-60v to +-90v
What's the safest voltage of the irs2092s amp that provides the best performance
Amp
Stepups
Smps
Attachments
Last edited:
I think you just need a signal inverter in front of one of the amps to get bridged mode.
Then output from one amp to speaker + and output from other amp to speaker -.
Then output from one amp to speaker + and output from other amp to speaker -.
Thanks for the reply, sorry I've never heard of a signal inverter before, what does It do to make the amps bridgeable? Couldn't find any signal inverter modules
I've got lots of parts, transistors, op amps, tl494s, 555 so if its relatively simple I could make one
In that case could I also use software to invert the audio signal? I'm using a micro controller/micro processor to send two audio channels to each irs2092s, I can easily modify code to invert one
This looks very simple, and takes a single audio input and splits it to two, one inverted and one non inverted, so can be wired to each irs2092s
Is it possible to invert phase just by swapping over the ground and signal wired to the amplifiers input?
Not with a single-ended signal which is ground referenced. If you have balanced differential signalling you simply swap the wires to invert.
Also the IRS2092S is a chip - without knowledge of the specs of the actual amplifier modules there's no way to know what voltage or load is possible bridged or otherwise. If the module is cheapo off eBay there won't be reliable specifications anyway...
Also the IRS2092S is a chip - without knowledge of the specs of the actual amplifier modules there's no way to know what voltage or load is possible bridged or otherwise. If the module is cheapo off eBay there won't be reliable specifications anyway...
Just use a dual op-amp...
https://www.allaboutcircuits.com/te...ge-amplifiers-for-single-supply-applications/
https://www.allaboutcircuits.com/te...ge-amplifiers-for-single-supply-applications/
Yes I've gotten 4 modules from the same company now , there seems to be a v2 of the modules then a v1. The v1s all play alot louder but so far have all Burned out. The v2 is a slightly quite but much more resiliant. Neither have any marking on their mosfets , the v2 does seem to have a legitimate irs2092s ic though.
Does anyone know if the single transistor inverting circuit will work for line level mono going into the amp.
Also am I right that the phase inversion is on the input?
Does anyone know if the single transistor inverting circuit will work for line level mono going into the amp.
Also am I right that the phase inversion is on the input?
Ok, I have a ne5532 opamp chip that I found
Using my two supplies I can give the ne5532 +-6v. Could I have my audio signal coming in on pin 6 for it to then come out inverted on pin 7?
Or Would I need to set up a circuit around the opamp like the one below
Using my two supplies I can give the ne5532 +-6v. Could I have my audio signal coming in on pin 6 for it to then come out inverted on pin 7?
Or Would I need to set up a circuit around the opamp like the one below
Did you not read the link I posted? It shows exactly how to build the circuit for both bi-polar supplies and single supply.
Ah sorry didn't see that. I assume I can use the two comparators in my ic to make that circuit.
Does anyone know what resistor values I should use considering its line level
Does anyone know what resistor values I should use considering its line level
Currently got this with a 4558d dual opamp, I think it's OK?
I don't have any equipment to generatr or measure the sine wave output, but it did manage to take mono audio signal and play it through a small 2" driver connected to the inverted(sp-) and non inverted(sp+)output (not sure if this is really an effective test)
Ok, I wired the dual op amp phase inverter, non inverted to one amp and inverted to to the other amp.
Speaker is wired to each amplifiers positive output
Began playing music, at low volume there is alot of background noise, but it works, especially once the volume is turned up the background noise goes, hopefully just my breadboard op amp circuit
I've got a big issue in that my two irs2092s amplifiers are very slightly different to eachover, one uses different transistors, different heatsink, and has a potentiometer for adjusting the amplifier switching frequency. This one stops working correctly at high volume, it begins to cut in and out? The other one doesn't have this issue but can't really go as loud, can't find this variant anywhere.
Speaker is wired to each amplifiers positive output
Began playing music, at low volume there is alot of background noise, but it works, especially once the volume is turned up the background noise goes, hopefully just my breadboard op amp circuit
I've got a big issue in that my two irs2092s amplifiers are very slightly different to eachover, one uses different transistors, different heatsink, and has a potentiometer for adjusting the amplifier switching frequency. This one stops working correctly at high volume, it begins to cut in and out? The other one doesn't have this issue but can't really go as loud, can't find this variant anywhere.
I think there's a few possibilities for why the odd irs2092s one is cutting out.
Maybe it could be to do with the switching frequency the amplifier is set to? The one that works has a fixed switching frequency, the odd one has this adjustable potentiometer.
I don't think it's my power supply, as one of the amps works perfectly from it at full volume
Maybe it could be to do with the switching frequency the amplifier is set to? The one that works has a fixed switching frequency, the odd one has this adjustable potentiometer.
I don't think it's my power supply, as one of the amps works perfectly from it at full volume