Switches & Pulsers
TTL control input and low power electronics replace expensive heater supplies and drivers found in vacuum tube based solutions. PPM supply a range of 300 standard devices manufactured by Behlke as well as custom designs. We also offer turnkey solutions from Berkeley Nucleonics.
Find the component you are looking for in the table below or call us on +44 (0)1793 784389 and talk to one of our technical sales team.
Extreme rise and fall times
The Behlke solid-state switches have extreme rise and fall times. If your application does not require the full switching speed we suggest you the use the speed limiting option S-TT (rise & fall times slower by approx. 50%) in combination with the input low pass filter option LP. The speed limiting options help to minimise the high frequency difficulties typical for fast high voltage pulse circuits e.g. self-oscillating, self re-triggering, ringing and simplify the EMC design in general.
Using a free-wheeling diode network to prevent reverse currents
Fast solid-state switches are sensitive to reverse currents from unclamped inductive loads. Reverse currents may turn on the slow intrinsic (parasitic) FET diodes in an undefined way and can lead to a catastrophic switch failure. In particular turn-off operation, in combination with high turn-off currents, a fast free-wheeling diode network (fast serial blocking diode + parallel fast free-wheeling diode) should be implemented. This can be integrated with the switching module as option I-FWDN. Please discuss with PPM Power technical support form more information.
For more information about high voltage switches please see choosing a high voltage switch.
Fixed On-Time Switches
On-Time Description | Maximum Voltage | Maximum Current | Switch On-time | |
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Fixed thyristor/SCR switches | Current Depending | 4 - 150 kV | 1 - 16 kA | > 35 us |
General Purpose Fixed MOSFET Switches | Fixed | 4 - 150 kV | 15 - 200 A | 100 - 300 ns |
Low Impedance MOSFET Switches | Fixed | 0.5 - 40 kV | 70 - 1600 A | 150 ns |
Ultra-Fast MOSFET Switches | Fixed | 3 - 12 kV | 60 - 200 A | 120 - 200 ns |
Low On-Resistance Fixed MOSFET Switches | Fixed | 3 - 24 kV | 60 - 1040 A | 150 - 250 ns |
Variable On-Time Switches
On-Time Description | Maximum Voltage | Maximum Current | Switch On-time | |
---|---|---|---|---|
General Purpose Variable MOSFET Switches | Variable | 0.5 - 36 kV | 12 - 640 A | > 50 ns |
High di/dt MOSFET Switches | Variable | 3 - 36 kV | 200 - 3200 A | > 300 ns |
Low Capacitance MOSFET Switches | Variable | 3 - 140 kV | 30 - 800 A | > 60 ns |
Low On-Resistance Variable MOSFET Switches | Variable | 0.5 - 21.6 kV | 125 - 3750 A | > 150 ns |
AC MOSFET Switches | Variable | 1.2 - 36 kV | 12 - 130 A | > 50 ns |
General Purpose IGBT Switches | Variable | 3 - 36 kV | 800 - 9600 A | > 0.2 us |
Push-Pull MOSFET Switches | Variable | 2x 1.2 - 140 kV | 2x 12 - 200 A | > 50 ns |
High Voltage Pulse Generators | Variable | (2x) 3 - 12 kV | (2x) 15 - 80 A | > 50 ns |
Pulsed Power Switch Assemblies
On-Time Description | Maximum Voltage | Maximum Current | Current Rise Rate | |
---|---|---|---|---|
Pulsed Power Stacks | Variable | 30 kV | 20 - 50 kA | 10 - 30 kA/us |
Showing 1–12 of 14 results
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AC MOSFET Switches
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Fixed Thyristor/SCR Switches
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General Purpose Fixed MOSFET Switches
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General Purpose IGBT Switches
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General Purpose Variable MOSFET Switches
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High di/dt MOSFET Switches
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High Voltage Pulse Generators
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Low Capacitance MOSFET Switches
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Low Impedance MOSFET Switches
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Low On-Resistance Fixed MOSFET Switches
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Low On-Resistance Variable MOSFET Switches
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Pulsed Power Stacks
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