Basic Circuit Building Blocks
Revision as of 09:44, 15 January 2008 by Russ hensel (talk | contribs) (New page: These are circuits and parts of circuits that we see over and over again in larger projects. Understanding a complex circuit is much easier if you understand these building blocks. == Se...)
These are circuits and parts of circuits that we see over and over again in larger projects. Understanding a complex circuit is much easier if you understand these building blocks.
Contents
- 1 Series Circuit
- 2 Parallel Circuit
- 3 Current Sense Resistor ( Shunt Resistance )
- 4 Filter Capacitor / Decoupling Capacitor / Low Pass Filter
- 5 Pull Up and Switch
- 6 Pull Down and Switch
- 7 Op amp Non Inverting Amplifier
- 8 Op amp Unity Gain Buffer
- 9 Light Emitting Diode ( with current limiting resistor )
- 10 Three Terminal Regulator
- 11 Transistor Low Side Switch
- 12 Transistor Emitter Follower
- 13 Voltage Divider
- 14 Light Emitting Diode ( with current limiting resistor )
- 15 Push Pull Circuit ( with transistor emitter follower )
- 16 Darlington connected Transistors
- 17 Schmitt Trigger
Series Circuit
Parallel Circuit
Current Sense Resistor ( Shunt Resistance )
A current Sense Resistor is a low value of resistor that is placed in series with some other circuit. We can then measure the voltage across the resistor to compute the current. If the resistor has a low value compared to other components we can ignore the effect on the circuit. We use the word shunt when the voltage is measured by a device that has a fairly low resistance itself. We then have to do a more careful calculation of how the current is shared by the two devices.
More information:
- Scienceshareware.com's How A Precision Resistor Is Used to Measure / Calculate Current and Power in an Electrical Circuit.
- High-Side Current-Sense Measurement: Circuits and Principles
- Shunt (electrical) From Wikipedia, the free encyclopedia
- Other ways to measure current: Motor_driver#current_sense
