Hi Dear All:
I want to build two new linear power supplies, now I already have the power supplies as below:
1 0~50V/ 2A/4A Linear Regulated Adjustale dual polarity Power Supply
With output short-circuit protection using relay.
Base on LM723 and two 2N3055.
This is a kit that I bought it long time ago, so I have the circuit diagram.
2. Fiive Fixed Voltages Linear Regulated dual polarity power supply.
The three fixed voltages that they are series in as ±15V → ±12V → ±9V.
a) ±15V -- Using 7815,7915.
b) ±12V -- Using 7812,7912.
c) ±10V -- Using Six 1N4007. (connected from ±12V).
d) ±9V --- Using 7809,7909.
e) ±5V --- Using 7805,7905. (this transformer is stand alone)
I bought the two transformers as below:
1. PT-47 (Made in Taiwan)
Input : AC 110V
output :
AC 24V,0,24V ------------ 0.6A
AC 0,6V,11V ------------- 2A
AC 42v,36v,0,36v,42v -- 6A
AC 0,24V ----------------- 1A
2. Another Transformer (no type number) --
Input : AC 110V
Output:
0,12v ------- 1A
0,12v ------- 2A
42V,0,42V -- 5A
24V,0,24V -- 2A
The functions of the new power supplies:
1. Linear regulated dual polarity power supply.
2. Dual tracking.
3. Temperature detection and loopback current control.
4. output short-circuit protection.
5. 12bits ADC 7-segments LED Voltage and Current Display
6. USB communication System - Using AT89S52 Can be communicate with computer.
7. LM317 & LM337 Base with 2N3055 And 2N2955 or MOSFET.
8. Adding some other functions or using other regular IC.
I am open my mind to hear any suggestions from you guys.
Thank you.
I want to build two new linear power supplies, now I already have the power supplies as below:
1 0~50V/ 2A/4A Linear Regulated Adjustale dual polarity Power Supply
With output short-circuit protection using relay.
Base on LM723 and two 2N3055.
This is a kit that I bought it long time ago, so I have the circuit diagram.
2. Fiive Fixed Voltages Linear Regulated dual polarity power supply.
The three fixed voltages that they are series in as ±15V → ±12V → ±9V.
a) ±15V -- Using 7815,7915.
b) ±12V -- Using 7812,7912.
c) ±10V -- Using Six 1N4007. (connected from ±12V).
d) ±9V --- Using 7809,7909.
e) ±5V --- Using 7805,7905. (this transformer is stand alone)
I bought the two transformers as below:
1. PT-47 (Made in Taiwan)
Input : AC 110V
output :
AC 24V,0,24V ------------ 0.6A
AC 0,6V,11V ------------- 2A
AC 42v,36v,0,36v,42v -- 6A
AC 0,24V ----------------- 1A
2. Another Transformer (no type number) --
Input : AC 110V
Output:
0,12v ------- 1A
0,12v ------- 2A
42V,0,42V -- 5A
24V,0,24V -- 2A
The functions of the new power supplies:
1. Linear regulated dual polarity power supply.
2. Dual tracking.
3. Temperature detection and loopback current control.
4. output short-circuit protection.
5. 12bits ADC 7-segments LED Voltage and Current Display
6. USB communication System - Using AT89S52 Can be communicate with computer.
7. LM317 & LM337 Base with 2N3055 And 2N2955 or MOSFET.
8. Adding some other functions or using other regular IC.
I am open my mind to hear any suggestions from you guys.
Thank you.
Last edited: