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Reasons Why Resistor Networks Are Preferred for Designing Electrical Circuits
Resistor networks area usually an arrangement of several resistors into a single component that can function as a unit. They function as a unit as opposed to using single and separate resistors. The resistors are usually combined together within the device so as to provide the required resistance. The most common design material used in this case is the thick film technology. The reason why it is favored is because it has better qualities that include its high resistance measured per unit area, high power handling capacity as well as low cots when likened to other materials. Highlighted below are some of the benefits of incorporating resistor networks into circuit designs.
Resistor networks find a whole range of applications in different fields. Those who create electronic products make use of resistor networks in various ways. This is because they have superior qualities to the individual discrete resistors. Commercial and military, as well as medical and industrial devices mainly make use of resistors in network. They are also used in transistors, sensors and many other devices that require resistors. Because of the unique characteristics of each device, it’s necessary to design the resistors in way that addresses these needs. A good example is the resistor networks for sensor which require value matching as an important consideration while others do not.
Use of resistor networks creates the possibility of saving circuit board space. It is possible to adopt a single line module arrangement of resistor networks which can be mounted vertically. The kind of mounting adopted for this design of network resistors takes up minimal space as compared to the mounting of the individual resistors with the same effective resistance. Additionally, it is possible to greatly improve the packaging density of the board because the network system makes use of high density track and gap networks.
Resistor networks enhance the heat dissipation capacity of the circuit. One of the greatest functions of a resistor network in a circuit is to get rid of the accumulated heat. Their arrangement on the circuit board should therefore be in such a way that it’s possible to achieve the maximum possible heat dissipation from the circuit. The arrangement that makes this possible is the network resistor design. This can be explained by the fact such resistors are mounted vertically on the board to facilitate ease of air flow.
It is possible to do value matching with a network of resistors. This is because it is dependent on several factors such as temperature coefficient of resistance, changes in the resistor load as well as the sizes of resistors themselves. Its crucial to ensure a similarity of properties for the individual resistors that make up the network. This proximity or similarity in size and other characteristics makes value matching easier in networks than in single resistors.
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