VS-VSKJ56/04

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Diodes-Rectifiers-Arrays are electrical components which are used to convert AC power into DC power. This is achieved by rectifying the AC voltage with the rectifier diode and then using the voltage converter array to transform it into usable DC voltage. The VS-VSKJ56/04 is an example of such an array and its applications and working principle will be discussed in the following sections.

Basics and Construction

VS-VSKJ56/04 is an integrated phase-controlled rectifier or thyristor bridge array that provides bidirectional current control by using a single power device. It is a bridge-type current source inverter (CSI) which consists of four power switching thyristors in a full-bridge configuration. Its main features include thyristor triggering, symmetrical sinusoidal commutation of alternating current for load power supply, sinusoidal pulse-width modulation for adjustable frequency output control, and various protection functions.

Application Field

The VS-VSKJ56/04 array is designed for a variety of applications, ranging from motor speed control and energy harvesting to servo motor control in industrial automation. Its flexible input and output power ranges, as well as its wide operating frequency range, make it suitable for use in many fields. Additionally, the array can be used to provide battery charging current to rechargeable batteries, as well as to regulate voltage in traction battery charging systems.

Working Principle

The VS-VSKJ56/04 works by using four thyristors connected in a bridge circuit to perform bidirectional current control. The array is triggered with a two-level voltage command signal that then controls the average switching current and thereby the average output current. The array is connected to the AC line voltage and when the load current is positive, current will flow across thyristors S1, S4. On the other hand, when the negative load current is needed, thyristors S2 and S3 will start conducting to provide the reverse current. This process is then repeated for each cycle and the load power is jointly controlled by the duty cycle and peak current.

Advantages

Amongst the advantages of the VS-VSKJ56/04 array is its high power efficiency and low losses. This is achieved by reducing the firing losses of the device and by keeping the operating temperature of the array low. Additionally, it provides a range of protection functions such as overvoltage, overcurrent, over-temperature and zero switching to prevent unexpected fault conditions. Furthermore, the array has long life expectancy and good anti-interference performance thanks to the advanced digital control technique.

Conclusion

VS-VSKJ56/04 is a bridge-type current source inverter that is used for a variety of applications such as motor speed control, energy harvesting and servo motor control in industrial automation. Its working principle is based on the use of four thyristors connected in a bridge circuit to provide bidirectional current control. This array supports a wide range of power levels, as well as a wide operating frequency range. Its high power efficiency, low losses and advanced protection features make it an ideal choice for power applications.

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