|-
| Name || Workhorse 1.5KW Bipolar Class H Amp
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| Type || Solid State
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| Application || PA
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| Class || H
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| Approx Cost || Unknown
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|
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| Designer || Workhorse
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| Thread || http://www.diyaudio.com/forums/solid-state/180638-diy-1-5kw-bipolar-class-h.html
|-
[h=The Project]%1[/h]
Do it yourself, Class-H power amplifier 1500WRMS @ 2ohms
[h=Introduction]%2[/h]
Its a Class-H amplifier with following features:
1: Fully complementary symmetry input differential with Cascode loading.
2: CE-CB Cascode VAS for wider bandwidth.
3: 2 Step rail switching with controlled slew for minimizing switching noise.
4: Triple EF output stage for high damping factor and ease in 2 ohms load driving.
5: All set of required basic professional protection circuitry.
6: Almost Half the heat dissipation of same wattage class-ab amplifier due to Rail Tier Switching and excellent handling of reactive loads.
[h=Goals]%2[/h]
Goal: To design a reliable amplifier with professional standards.
Result: All design goals met.
[h=Specifications]%2[/h]
|-
| class="tcat" | Name
| class="tcat" | Description
|-
| Voltage Gain || 26dB
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| Full power Bandwidth || 20-20kHz
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| Power output || 1500WRMS @ 2ohms
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| Input Sensitivity || 4Vrms @ 8Ohms
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| S/N Ratio || 100dB
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| Peak Consumption || 4400VA @dual channel @ 2ohms continuous music operation
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| Idle Consumption || 110W
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| Harmonic Distortion || 0.05% THD [FPRL]
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| Load Impedance || 2 ohms minimum
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| Slew Rate || 33v/uS
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| Stability || Unconditionally stable with all known real world speaker loads
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| Output configurations || Parallel/Stereo/Bridge operation
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| Damping Factor || >1000 @ 100hz
[h=Additional Features]%2[/h]
* Thermal shutdown
* DC Fault
* Muting
* Short Circuit Protection
* True Clip Detection
* Signal out
* Fault Status
[h=Schematic/Blueprint]%2[/h]
[h=Bill of Materials]%2[/h]
There is no BOM just yet. Will be added later.
[h=Simulations and Analysis]%2[/h]
<Embed the images for your simulations here along with descriptions for each of them so people know what you're talking about.>
[h=Construction (Steps / Tips / Notes)]%1[/h]
[h=Project Files]%2[/h]
The files for this project are available in the attachments section at the bottom of the page.
[h=Other Notes]%2[/h]
* Requires 2800VA transformer with following winding specs: 85-50-15-0-15-50-85 14A secondary.
* PCBs should be printed with minimum 35micron and PTH is must as there are vias on the board
* PCB measures 37 X 12 cm (4.75 x 14.5 in)
* Bias Pots: 10mV across emitter resistors of output devices corresponds to 30mA through each device, should be optimum
[h=Known Substitutions]%2[/h]
* You can use Genuine 5200/1943 upto 1.5KW or MJL21196/95 for 2KW
[h=Reviews]%1[/h]
No reviews yet...
[h=Build Threads]%1[/h]
Examples:
Have you built this project? If so, please add the URL to the thread that you started to show off your build.
- URL to my uber build 1 thread
- URL to my super dooper build 2 thread!!!
[h=Related Group Buys]%1[/h]
- Thread 1234
- GroupBuy😛SU
Attachments
Last edited:
1.5kw bipolar amplifier pcb
it is good circuit i,ll try to make it. plz send me the part list also.
thanking you.
it is good circuit i,ll try to make it. plz send me the part list also.
thanking you.
