At the end of the 19th century, advances in the semiconductor technology introduced solid state switches. These type of switches replaced the older models that were being used before. Such models included thyratrons, ignitrons, and spark gaps. Before the invention, electronics used older drivers which have since been replaced by TTL input controls that have dramatically improved performance and efficiency. A high voltage contactor has been used a lot in the past few years and there are a lot of details that make them stand out.
The switches have been developed in a way that there is very low input power loss. Power losses have been a major cause for concern when developing switches. These switches are developed with MOSFET technology. This technology involves the use of small total gate charge. This means that losses due to the gate charge, switching frequency, and the drive voltage are very minimal. This is not the case when switches use bipolar transistors such as BJT.
The contactors are reliable when it comes to high current applications. Even when short circuited, they guarantee steady hard saturation which is very necessary when running high current applications such as medical test equipment. The fact that they are able to switch faster also make them efficient for use in these applications. The switching speeds generally increase the efficiency of the equipment.
These contactors can be customized in a number of ways to suit where they are being used. The customization is mostly done with the housing and the footprint. Another area that customization can be done is sensitivity. These innovations help the switches to run effectively with the equipment.
The switches are designed to prevent against overload or voltage reversal. Cases of voltage reversal are common and they lead to catastrophic events. The technologies used in these switches make them safe for everyday use. The technologies include MOSFET, IGBT, SCR, and thyristor. With such technology, these contactors are highly recommended.
Little current is required during switching which is essential in preventing heating, especially when handling high loads. This is mostly because the contactors are power controlled. Other contactors require a fair amount of current to switch. This causes a lot of heating when handling a lot of power. This may cause such switches to operate on linear mode because the level of the drain current affects the gate-source voltage. This is not the case with the power switches, level of drain current has no effect on gate-source voltage.
These switches guarantee faster switching. The speed advantage of these contactors makes them a better choice for everyday use. They are able to handle high frequencies due to the thin oxide layer used when making the transistors. This layer prevents the use of current when switching. Most switches especially those that use bipolar transistors take much time when switching.
These power contactors are effectively used with both high and low power equipment. The few discussed features have been the reasons why they have become common. The factors mentioned above are very important and make considerable impacts on the performance of any equipment.
The switches have been developed in a way that there is very low input power loss. Power losses have been a major cause for concern when developing switches. These switches are developed with MOSFET technology. This technology involves the use of small total gate charge. This means that losses due to the gate charge, switching frequency, and the drive voltage are very minimal. This is not the case when switches use bipolar transistors such as BJT.
The contactors are reliable when it comes to high current applications. Even when short circuited, they guarantee steady hard saturation which is very necessary when running high current applications such as medical test equipment. The fact that they are able to switch faster also make them efficient for use in these applications. The switching speeds generally increase the efficiency of the equipment.
These contactors can be customized in a number of ways to suit where they are being used. The customization is mostly done with the housing and the footprint. Another area that customization can be done is sensitivity. These innovations help the switches to run effectively with the equipment.
The switches are designed to prevent against overload or voltage reversal. Cases of voltage reversal are common and they lead to catastrophic events. The technologies used in these switches make them safe for everyday use. The technologies include MOSFET, IGBT, SCR, and thyristor. With such technology, these contactors are highly recommended.
Little current is required during switching which is essential in preventing heating, especially when handling high loads. This is mostly because the contactors are power controlled. Other contactors require a fair amount of current to switch. This causes a lot of heating when handling a lot of power. This may cause such switches to operate on linear mode because the level of the drain current affects the gate-source voltage. This is not the case with the power switches, level of drain current has no effect on gate-source voltage.
These switches guarantee faster switching. The speed advantage of these contactors makes them a better choice for everyday use. They are able to handle high frequencies due to the thin oxide layer used when making the transistors. This layer prevents the use of current when switching. Most switches especially those that use bipolar transistors take much time when switching.
These power contactors are effectively used with both high and low power equipment. The few discussed features have been the reasons why they have become common. The factors mentioned above are very important and make considerable impacts on the performance of any equipment.
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