LM338 Power Supply

Description

A 12V power supply is a very essential and useful supply for Lab because it is used by a huge list of electronic circuits and devices. So you can build a 12V power supply circuit according to your ampere requirements.

Here is a 12V 5A power supply circuit using LM338 IC. LM338 is a adjustable voltage regulator IC available in 3 terminals. This IC also contains many built in features like current limit constant with temperature, thermal regulation, short circuit protection etc. The voltage of the LM338 is adjustable between 1.2 to 20 volt. But you can also use it on your desired fixed voltage between 1.2 to 20 volt. The circuit mentioned here is built to take 12V & 5 ampere fixed output from this IC. The IC will become hot during the operation due to which a suitable heatsink will be required. 

LM338 features

• GUARANTEED 7A PEAK OUTPUT CURRENT

• GUARANTEED 5A OUTPUT CURRENT

• ADJUSTABLE OUTPUT DOWN TO 1.2V

• LINE REGULATION TYPICALLY 0.005% /V

• LOAD REGULATION TYPICALLY 0.1%

• GUARANTEED THERMAL REGULATION

• CURRENT LIMIT CONSTANT WITH TEMPERATURE

• STANDARD 3-LEAD TRANSISTOR PACKAGE

this is a test for 2A output

CDYNE PAV-I Global Postal Address Verification

I got a chance to test CDYNE PAV-I Global Postal Address Verification. 
CDYNE PAV-I allows you to validate and standardize addresses for over 240 countries. Now you can ensure data quality for your international customer base and better manage customer information.
The operation below can be found in the PAV-I Specification Sheet.
I have made simple form in C# .NET to test this servce and place it on gitHub with documentation, and short description. 
I have tested this service in my country (Croatia) and  it is working fine. The match level of the searching address is frequently return vith value 3 (Premise (Building)) and output status from service is often "Address was successfully matched or parsed and has been verified mailable with no change" , Of course, if you entered the correct address.
Also very useful thing is address corection, if you enter some wrong address servce correct adress and get back corected result with note "Address was successfully matched or parsed and has been corrected to match reference data".
This service is from my opinion very well, I have tested addresses from small cityes to big, and in both test results are satisfactory. 


You can also see some tests from my video below.