Qioptiq DIV 20 Instruction Manual

Manual is about: Pulse Amplifier

Summary of DIV 20

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    Pulse amplifier div 20 instruction manual 03/2016 qioptiq photonics gmbh & co. Kg hans-riedl-str. 9 d-85622 feldkirchen germany tel.: +49-89/255458 890 fax: +49-89/255458 895.

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    2 1. Safety remarks in order to avoid unwanted damage or hazards, please read this instruction manual carefully before operation. The div 20 has to be operated by trained personel only ! The pulse amplifier div 20 is specially designed to drive capacitve loads with an extremely fast rise-time and hi...

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    3 other loads can be switched by the addition of the div 20, if the maximum load (as specified under section 6 of this manual) will not be exceeded. 3. Description of the control and display elements legend description display display for pulse or offset voltage s1 switch div 20 display to show puls...

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    4 fig. 1: front panel of div 20 with control and display elements.

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    5 4. Operation this description explains operation of the div 20 as driver for the laser modulator series lm 0202 or lm 13 in the light chopper mode. For these modulators a special cable and an adapter are included with the div 20. Operation of the div 20 with other modulators or in other modes is s...

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    6 signal. The output impedance of the signal generator must be sufficiently low to drive the input of the div 20 (see section 7. Specifications). The input impedance of the div 20 can be switched to 50 or to 600 . In the case of narrow pulses combined with high repetition rates, we recommend choosin...

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    7 6. Inverted intensity pattern it is extremely easy to invert the generated pulse pattern: set the mode switch (s2) to the low position and adjust the offset, such that maximum light intensity is given. Then set the mode switch (s2) to the high position and adjust pulse voltage, such that minimum i...

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    8 specification description signal input input impedance 50 / 600 adjustable input voltage low 0v .. 0.4v input voltage high 2.4v .. 5.5v pulse width >30 ns ac power 115v/230v (±15%), 50/60hz, 400w overvoltage category ii, output voltage pulse output voltage 0v .. 590v maximum pulse output current o...

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    9 load diagram fig. 2: dependence of the maximum frequency on the applied pulse voltage 10. Interface for external control the external control is possible using the 25-pin-sub-d connecter in the rear panel of the div 20. The trigger signal is ttl. Pin assignment pin description 1 gnd 2 input contro...

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    1 0 6 +15 v 7 nc 8 gnd 9 temperature control 0 = normal 1 = thermal overload alternate 0/1 = output current overload 10 +5 v ( 11 input control voltage for the offset voltage 0 - 10 v dc 0 - 600 v pulse voltage input resistance ca. 50 k 12 adjustment of offset voltage 0 = internal 1 = external via p...

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    1 1 appendix a: fig. 3: connecting the adapter.

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    1 2 appendix b: connecting the special cable to the div 20 output socket: 1. Plug 1 marked as “pulse” has to be connected to the pulse-output socket. See fig.4 below. 2. Plug 2 marked as “offset” has to be connected to the offset-output socket. See fig.4 below. 3. The banana-plug of the cable has to...

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    1 3 appendix c: using the bulk-ferrite: 4 pcs ferrite are shipped with the div 20 driver. Please assemble them to the cables in the following way: 1. Ferrite no. 7427154 has to be mounted to the cable plugged to the pulse-input-ttl of the div 20. The ferrite should be placed close to the “pulse”-inp...