Trimmer Potentiometers are component devices used for applications which require alterations to the built-in electrical parameters. These are widely used for the purpose of setting terminals or end points for a given field of application. The trimmer consist of three terminals and has an adjustable contact knob which can be moved along the track to change the resistance value. The most common type of trimmer potentiometers are the rotary and linear trimmers. The type illustrated here models a 6mm square linear trimmer and is referred to as a 1-1630478-1.

1-1630478-1 Application Field and Working

The 1-1630478-1 is a three-terminal, linear, trimmer potentiometer mainly used in the field of microcontroller-based devices. It has a series of evenly distributed holes along a conductive track. This potentiometer is widely used in voltage regulator circuits and switching power supplies, as it allows for quite precise voltage adjustment. It is used to make adjust the values of various output parameters in the circuit, such as current, voltage, frequency, power and temperature. The 1-1630478-1 is a tall, all metal, three-terminal trimmer, with an adjustable contact knob at the center and two support posts at either end.

Working Principle

The working principle of the 1-1630478-1 is quite straightforward and consistent with that of all other trimmer potentiometers. When the center contact knob is adjusted along the track, the resistance between the contact point and either end post changes, in a linear fashion. When the knob is in the center position, the resistance is at its lowest. When the knob is turned in either direction, the resistance increases by a predetermined amount. This in turn directly affects the output parameters of the circuit, such as voltage and current.

Benefits

The benefits of using the 1-1630478-1 are numerous. Firstly, it is quite cost effective, as it is much cheaper than other standard potentiometers. Secondly, it is quite precise, since the resistance values can be adjusted with great accuracy. Thirdly, it is adjustable, allowing for a wide range of resistance value changes. Fourthly, it is very durable, and can withstand harsh environmental conditions. Finally, the knurled control knob allows for precise adjustments.

Conclusion

In conclusion, the 1-1630478-1 is a three-terminal, linear, trimmer potentiometer designed for setting terminal points and adjusting output parameters in microcontroller-based devices. It is cost effective, precise, adjustable, durable and easy to use. It is most commonly used in voltage regulator circuits and switching power supplies and can be used to fine tune the output parameters.