License

Tags
Recommend Projects

Dual adjustable power supply

4 years ago 1944
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

This project is a solution to power up most of devices or projects requiring dual (+/-) adjustable power supply.

Description The circuit is based on LM317 positive and LM337 negative voltage regulators. LM317 series of adjustable 3 terminal regulator is capable of supplying in excess of 1.5A over a 1.2V to 30V DC output range, due to TO3 package of IC and large heat sink the power supply can handle maximum load current.

Output: +/- 1.2 to 30V DC Output Current: 1.5Amps Supply Input: 24V-0-24V AC, 2Amps Center tape Transformer CN1: Transformer Connections CN3: +/- Dual Supply Outputs P1: Positive Voltage Adjust P2: Negative Voltage Adjust D1: Positive Power Indicator D2: Negative Power Indicator From:http://www.electronics-lab.com/project/dual-adjustable-power-supply/

Documents

dual-adjustable-power-supply

DUAL ADJUSTABLE POWER SUPPLY PCB

BOM

ID Name Designator Footprint Quantity
1 LM317K U1 TO-3 1
2 LM337K U2 TO-3 1
3 BRADGE B1 2W10 1
4 INPUT CN1 5.08端子-3 1
5 100uF/50V C2,C9 RB-3.5/8 2
6 10uF/50V C4,C6 RB2/6 2
7 3.3k R1,R3 AXIAL-0.4 2
8 REDLED D1,D2 LED3MM 2
9 220E R2,R4 AXIAL-0.4 2
10 4.7kPOT P1,P2 2.54mm 3p 2
11 0.1uF C3,C10 CAP-5MM 2
12 0.1uF C5,C7 C1 2
13 DUAL DC OUT CN3 5.08端子-3 1
14 4700uF/50V C8,C11 RB0.5/1.0 2

Attachments

None

Members

Success
The owner does not allow comments in this project now

Comments (1)

dawen Reply

lot of DRC errors

goToTop
你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒
svg-battery svg-battery-wifi svg-books svg-more svg-paste svg-pencil svg-plant svg-ruler svg-share svg-user svg-logo-cn svg-double-arrow
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.