-40%
Sigma11 Power Supply Kit Voltage Regulator For Power Amplifier Standard Set
$ 11.57
- Description
- Size Guide
Description
DescriptionSigma11 Standard Board Set Power Supply Kit Adjustable Voltage Regulator For DAC Power Amplifier
Attention:
1. This SIGMA11 kit is only suitable for users who have a certain electronic knowledge and hands-on ability in soldering iron.
2. Due to the different purchase batches, some components will be replaced without notice under the premise of ensuring quality.
3. This kit does not include a chassis, power supply transformer or power supply filter capacitor.
4. SIGMA11 PCB board parameters, mini board 90x40MM/3.5x1.6", standard board 100x75MM/3.9x3", 1.6mm/0.06", 1 OZ, green.
5. When R10 is 10K, the output voltage is 23~24V (also the default output voltage of this kit), and there is an extra 50K 3296 adjustment.
6. The AC voltage supplying the board should not exceed AC 35V.
7. For other output voltages, a rule of thumb is that under load, a voltage drop of about 9V-10V should be maintained through the mosfet.
8. This kit contains the insulating sheet (including two insulating particles) used for the power adjustment tube, equipped with 6 stainless steel screws, but does not include heat dissipation oil.
9. When the rectifier diode is independent for heat dissipation, no insulation sheet is required, but if the bottom case of the chassis is used for heat dissipation, insulation treatment must be done (including the power adjustment tube).
10. For the convenience of users, a 5V and 12V voltage regulator tube are equipped.
11. Constant current tube for Sigma11+1N5819. The 1N5819 pin is slightly oxidized, just scrape it with a blade before soldering. Please make sure that you don't mind before purchasing.
The relationship between R10 and the output voltage value is as follows:
Output Voltage R10 Value Zener Diode(D5)
±36V 4.99K BZX55C12 (12V)
±30V 6.81K BZX55C12 (12V)
±27V 7.87K BZX55C12 (12V)
±24V 10K BZX55C12 (12V)
±15V 39.2K BZX55C12 (12V)
±12V not installed BZX55C12 (12V)
±9V not installed BZX55C9V1 (9.1V)
±5V not installed BZX55C5V1 (5.1V) or LM336-5.0 (ADJ pin unused)
Kit Description:
The circuit of the mini board is similar to that of the standard board. The PCB board size of the mini board is small. The main filter capacitor of C5 can be installed up to 18mm. Since the heat sink that can be installed on the power adjustment tube Q13 is also small, it is recommended to be used for small In the case of electric current, for example, about 100MA. Of course, the power adjustment tube Q13 can also be installed horizontally at the bottom of the chassis, which can output a larger current. The four rectifier diodes of the standard board can be installed with heat sinks, the power adjustment tube Q13 and Q14 are two parallel (of course, it can also be installed horizontally on the bottom of the machine tube), the C5 main filter capacitor can be installed up to 30MM, and the standard board is suitable for occasions with larger currents, depending on the current demand and space selection of the load circuit of the fans.
Standard Board Set:
- 100x75MM/3.9x3" PCB board with fully upgraded the gold plating process
- 120UF 63V, 470U 63VF capacitor adopts the KZE high frequency low resistance series for NCC, and the capacitor can also effectively filter out the interference clutter at higher frequencies and keep the power output pure.
Package Included:
- 1 x DIY Power Supply Kit
Note:
- Assembling is needed.
Payment Terms
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Shipping Terms
- For remote regions, we will charge your extra shipping costs. Usually it cost about 35USD-50USD. We will contact you after your payment. Thanks for your understanding.
Return Terms
1. If you receive defective item, please kindly notify us within 14 days. We will guide you the returning instruction for replacement or refund.
2. If you purchased in improper condition, please NOTE that the sipping and handling fee will not be refund, all return shipping fee should paid by the buyer unless item DOA.
3. We reserve the right to refuse any returns for objective reasons.
Custom Duties & Taxes
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2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.
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On Aug-16-21 at 03:34:15 PDT, seller added the following information: