Benefits of Making Use of Resistor Networks to Design Electrical Circuits
When a set of individual resistors are arranged in such a way that they can function as a single component, such as arrangement is referred to as a resistor network. They function as a unit as opposed to using single and separate resistors. They are combined with the objective of providing a resistance that is required for the entire circuit. Thick film technology is usually as a material preferred for constructing resistor networks. Thick film material is used because of its superior characteristics that include better power handling capacity, high resistance values per unit area and also lower cost in comparison with other materials. The following are some of the benefits associated with resistor networks in circuit design.
Resistor networks find a whole range of applications in different fields. The electronics industry requires resistor network for many different applications. The network resistors usually have better qualities than the single discrete resistors. Commercial and military, as well as medical and industrial devices mainly make use of resistors in network. Some of the devices that use network type resistors are sensors and transistors. Different gadgets require that the network resistors be designed in different ways to mirror their unique properties. For instance, sensor resistors use value matching as an important property while those used in pull up/pull down applications do not need it.
Use of resistor networks creates the possibility of saving circuit board space. Vertical mounting of single line module networks of resistors is possible. 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. Greater density of packing and mounting the resistors can therefore be used due to limited
space taken up on the board.
There is improved efficiency of dissipating heat in the circuit. One of the greatest functions of a resistor network in a circuit is to get rid of the accumulated heat. They should therefore be arranged in a given way to achieve maximum heat dissipation from the board. The resistor network arrangement is the most ideal arrangement to achieve the maximum heat dissipation possible. This is because they are normally mounted vertically on the board, allowing the air to flow more freely as compared to the discrete resistors.
Network resistors are capable of value matching. Value matching is a function of numerous factors such as the coefficient of temperature resistance, size of the resistors as well as the fluctuations of the load across the resistor. A resistor network is normally made up of resistors that have almost similar properties, if they are not all similar. Value matching can, therefore, be achieved in a network of resistors because the individual components are similar in characteristics.