Editing Basic Circuit Building Blocks

Jump to navigation Jump to search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.

Latest revision Your text
Line 396: Line 396:
 
Use this circuit when you wish to turn a load on and off with both a low voltage and a low current.  Note that neither side of the load is grounded.
 
Use this circuit when you wish to turn a load on and off with both a low voltage and a low current.  Note that neither side of the load is grounded.
  
A low side switch is one which switches a circuit on and off at the ground or low side of the circuit.  The advantage of a low side switch is that when using a transistor as the switch the voltage to drive the transistor is itself a low voltage.  It is often the easy way to drive LEDS, motors, and other high current devices from such low power devices as PIC output ports.  Low side switches are popular and there are many integrated circuits for them as well as this circuit.
+
A low side switch is one which switches a circuit on and off at the ground or low side of the circuit.  The advantage of a low side switch is that when using a transistor as the switch the voltage to drive the transistor is itself a low voltage.  It is often the easy way to drive leds motors and other high current devices from such low power devices as PIC output ports.  Low side switche are popular and there are many integrated circuits for them as well as this circuit.
  
 
Circuit with switch:
 
Circuit with switch:

Please note that all contributions to OpenCircuits may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see OpenCircuits:Copyrights for details). Do not submit copyrighted work without permission!

Cancel Editing help (opens in new window)