WEEK 4

WEEK 4

Activity : 
Continue study on operation of an ideal Marx Generator.

Objective : 

• To study more on advance marx generator.

Content:

Integrated Marx Generator.

The Improved Impulse Marx generator works same as the standard Impulse Marx generator i.e. the energy storage capacitor, C1, is charged from the high voltage direct current (HVDC) power supply. The output waveform is controlled by the interaction of the front resistor R1 and the tail resistor R2 with the energy storage capacitor C1 and the load C2. The only difference is that the switch here acts as a potential divider that divides the tail resistor. The advantage of this method is that this circuit design helps in proper shaping of the impulse wave as the standard wave i.e. it helps in reducing the errors in rise time and tail time. The rise in peak voltage is not that considerable.

In multistage Marx generator circuit resistive voltage divider are used in order to minimize the level of voltage to a measureable value across each capacitor. It consists of two impedances which are connected in series and a tapping is introduced in between these resistors in order to connect the sphere gap. Usually charging resistance is chosen to limit the charging current to about 50 to 100mA, while the generator capacitance is chosen such that the product of charging resistance and generator capacitance is about to 10s to 1 minute . The discharge time constant will be too small (microseconds), compared to the charging time constant which will be few seconds.

CONCLUSION

The integrated marx geneartor configuration produce high efficiency to the circuit.