Can two Sure Electronics New Tripath Board tc2000+tp2050 be bridged? - diyAudio
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Old 18th March 2010, 11:02 PM   #1
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Default Can two Sure Electronics New Tripath Board tc2000+tp2050 be bridged?

I have a second Sure board on the way and was wondering if it is possible to bridge the outputs, ie channel 1 of the first amp to channel 1 of the second amp.
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Old 19th March 2010, 01:47 AM   #2
gooki is offline gooki  New Zealand
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- ignore - didn't read the question properly.
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Old 19th March 2010, 04:32 AM   #3
sendler is offline sendler  United States
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Default Already bridged

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Originally Posted by fameless View Post
I have a second Sure board on the way and was wondering if it is possible to bridge the outputs, ie channel 1 of the first amp to channel 1 of the second amp.
The Sure TK2050 Amps are already bridged and have 15v dc on each leg. I don't think you can bridge them again. You should be able to mod them for parallel according to the data sheet for that chip set or you can run them up to 36v supply for more power if the heat sink doesn't get too hot.
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Old 19th March 2010, 05:45 AM   #4
wwenze is offline wwenze  Singapore
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The 2 channels per TP2050 are already paralleled on the Sure amp to give one channel per chip.

Possible to parallel multiple chips?

Last edited by wwenze; 19th March 2010 at 05:48 AM.
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Old 19th March 2010, 11:58 AM   #5
sendler is offline sendler  United States
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Default bridged

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Originally Posted by wwenze View Post
The 2 channels per TP2050 are already paralleled on the Sure amp to give one channel per chip.

Possible to parallel multiple chips?
The two channels of each TP2050 output device are bridged not paralleled. They probably could be reconfigured so that each chip is parallel with itself and then bridged with the other chip to make the Sure 2X100 into a mono amp. The data sheet shows the circuit.
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Old 19th March 2010, 01:04 PM   #6
wwenze is offline wwenze  Singapore
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According to Sure's datasheet shows OUT1A and OUT1B connected together at one side of the speaker, OUT2A and OUT2B together at the other end, which according to Tripath's TP2050 datasheet is for parallel operation.

Only in parallel mode can 100W per channel (or per chip) can be achieved, else TP2050 is 2*50W per channel stereo amp; Sure has already parallelled each chip with itself.

Add: Went through TK2050 datasheet, pg14 says the TK2050 (or TP2050 since the setting is done on TP2050) is either dual full bridge in stereo mode or single full bridge in paralleled outputs mode, so no luck on this one.

Last edited by wwenze; 19th March 2010 at 01:18 PM.
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Old 20th March 2010, 12:39 AM   #7
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Perhaps I'm talking about paralleling the outputs of two boards. Here is an artfully drawn diagram of what I would like to do. Would it work, if not, then why not? Thanks for looking...
Click the image to open in full size.
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Old 20th March 2010, 01:09 AM   #8
wwenze is offline wwenze  Singapore
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Don't think you can parallel the different chips though.

Is there any reason why you would want to parallel them? TP2050 isn't particularly powerful as it may appear, with max output of 50W into 8 ohm (per channel), paralleling them only gives more power if you reduce load impedance at the same time, so paralleling two channels (as already done on the Sure board) gives 100W into 4 ohms, four gives 200W into 2 ohms, but into 8 ohms it's still 50W.

So unless you're trying to drive 2-ohm speakers there's no point of further paralleling.
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Old 20th March 2010, 04:39 AM   #9
sendler is offline sendler  United States
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Default Parallel and bridged

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Originally Posted by wwenze View Post
According to Sure's datasheet shows OUT1A and OUT1B connected together at one side of the speaker, OUT2A and OUT2B together at the other end, which according to Tripath's TP2050 datasheet is for parallel operation.

Only in parallel mode can 100W per channel (or per chip) can be achieved, else TP2050 is 2*50W per channel stereo amp; Sure has already parallelled each chip with itself.

Add: Went through TK2050 datasheet, pg14 says the TK2050 (or TP2050 since the setting is done on TP2050) is either dual full bridge in stereo mode or single full bridge in paralleled outputs mode, so no luck on this one.
You are right. The sure 2X100 is already running each TP2050 in parallel mode and is also bridged and shouldn't be bridged again. Neither of the speaker terminals is ground.
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