Sunday, February 08, 2009

Rangkaian Regulator 78xx (7805,7812,7815...)

The available voltage from a voltage source that is usually not appropriate to the needs. It is necessary for a voltage regulator that functions to maintain the constant voltage value on a certain value. Voltage regulator chip is usually a code with the 78xx or 79xx. For the 78xx series is used for DC positive voltage regulator. xx indicates the regulator output voltage. For example, the system needs is a + 5 volt positive, the regulator used is 7805. Chip regulator consists of three pins, namely input, output and ground. In this IC uses the input voltage must be greater several percent (depending on the data sheet) from the value output voltage.

Chip lm78xx provide facilities in the affairs regulator. price is also relatively inexpensive and easy to find in the market

body Regulator 78xx

Features important in the IC LM 78xx:
  • current up to 1A
  • Security short internal
  • Safe temperatures 0°C - 70°C
  • Temperature max 150°C

Voltage out put in the offer:
  • LM7805C 5V
  • LM7806c 6V
  • LM7808 8V
  • LM7809 9V
  • LM 7810 10V
  • LM7812C 12V
  • LM7815C 15V
  • LM7824 24V
To be able to work with both the input voltage must be greater (voltage output volt + 3) of the output voltage. Example of the 7812 then bisanya skitar input voltage 15v

Rangkaian 78xxSkema Rangkaian 78 xx

Skema Rangkaian Elektronika