H estimation of the requiredgoal in performing1/rise-time 500experimental function is
H estimation on the requiredgoal in performing1/rise-time 500experimental work will be to test the associated Our principal bandwidth is 5 HV modulator MHz. The switching We take into consideration the switches to become the The element of most pulse-forming vital elements. circuit is shown in Figure 9. key initial switch under test was FSWP-51-02 from of their principal a metal oxide semiconductor field-effect to confirm devices regardless Behlke. This can be schemes. The key target with the tests was transistor (MOSFET)-based switch with internal resistanceswitch is capable of altering its 1 kV at that 10 ns rise and fall occasions are achievable, the of 55 . The model is rated to state the preferred 1.4 MHz rep rate using the tests was duration, the that it one hundred ns duration, 20 A peak existing. The goal of one hundred ns flat-topto attain and desiredcan conduct high currents 10 ns rise and fall times and 1.four test pulse repetition frequency (PRF), when less than devoid of overheating. In order toMHzthe switch, we fabricated a test stripline as shown in Figure the that voltage and, thus, the current. In Figure 9, Vp is usually a the steadily increasing8, sopeak it mimics one particular half in the kicker structure. Basically, DC stripline is usually a 50 that charges of 50 line with 1/8 coaxial connectors. We also attached power supply, cm-long pieceStreptonigrin medchemexpress capacitor bank Ccharge by way of a resistor Rcharge. The capacitor a 50 is connected rated switch CW to the which commutates it to utilized an (50 bank coaxial load for the to 5 kW input side,output on the stripline andthe striplineN-type coaxial adapter to the input. input impedance) when the low-voltage pulse is applied towards the switch handle port. can 10-(a)(b)Figure eight. High-power test stand for high-voltage (HV) switch (a) and a close-up photo with the stripline (b).Initial, we performed the reflected Guretolimod Agonist energy measurement with a vector network analyzer (VNA), which demonstrated the reflection from DC to 1 GHz below -25 dB. This ensures the acceptance of greater harmonics with the square-wave signal. Rough estimation of your required bandwidth is 5 1/rise-time 500 MHz. The switching circuit is shown in Figure 9. The first switch beneath test was FSWP-51-02 from Behlke. This can be a metal oxide semiconductor field-effect transistor (MOSFET)-basedPhotonics 2021, 8,9 ofswitch with internal resistance of 55 . The model is rated to 1 kV at 20 A peak current. The goal of the tests was to achieve the preferred 100 ns duration, significantly less than ten ns rise and fall instances and 1.four MHz pulse repetition frequency (PRF), though steadily rising Photonics 2021, eight,8, x FOR PEER Overview peak voltage and, thus, the current. In Figure 9, Vp is usually a DC energy provide, 9that11 9 ofof 11 Photonics 2021, x FOR PEER Evaluation the charges capacitor bank Ccharge by way of a resistor Rcharge . The capacitor bank is connected towards the switch input side, which commutates it towards the stripline (50 input impedance) when the test stand for pulse is applied switch (a) and close-up photo Figure eight.eight. High-power low-voltage high-voltage (HV)to the(a) and acontrol port. of your stripline (b). Figure High-power test stand for high-voltage (HV) switch switch a close-up photo with the stripline (b).Figure 9. Schematics of a switch test stand: Ron = =55 , R off = M; Rcharge = 0.5 , , C = 200 nF, wire Figure Schematics of a switch test stand: R 55 , off = 1 1 M; R 0.5 , charge nF, Lwire Figure 9.9. Schematics of a switch test stand: Ron=55 , RRoff = 1 M; Rcharge = = 0.five CCcharge = 200200LnF, on charge charge = = = 50 n.
