QBU-BT-10kV is an extension of QBU-BT-series up to 10kV operating voltage range.
Due high output voltage it may be used with Pockels cells working under L/2 schemes.
Drivers allow operations in three different operating modes (pull down scheme (= normally on), push up scheme (= normally off) and external synchronization mode (= repetition of external low voltage signal)) and therefore suit ideally for the laboratory usage.
Due high efficiency and embedded forced air cooling multi-kilohertz operations are possible even at maximal output voltage.
Performance
In internal synchronization mode performance of QBU-BT-10kV is limited with values given in table below. Total load capacitance of Pockels cell and connective cable is assumed as 23 pF (this corresponds to pretty long 50 cm output cable bent in non-optimal way and higher than normal Pockels cell capacitance).
Higher performance can be achieved in external synchronization mode.
In burst mode (i.e. for short term operations) the performance increases at least twice and can achieve 100 kHz at low operating voltages and low load capacitances.
Higher load capacitance decreases the performance.
Output:
pull-down scheme
push-up scheme
repetition of external signal
Voltage, high level
adjustable in 4 – 10 kV range
Voltage, low level
fixed, 0 V
Pulse width
1 us - 1 s (in internal synchronization mode)
200 ns - DC (in external synchronization mode)
Max. repetition rate
> 5 kHz at the full load (10 kV, 11 pF)
> 50 kHz at lower voltages
Rise time (fall time)
< 20 ns / < 25 ns
1
Environment:
Protections
from overheating (approx. 72 °C)
Operation temperature
0 … +40 °C
Storage temperature
-20 … +60 °C
Humidity
90%, non-condensing
Other:
Size (LxWxH)
300x220x80 mm
1)
10-90% level, warranted at load capacitance 11 pF and below
Modifications
4.0-10.0 kV high voltage adjustment range
(*) Other output voltages are available on request
Example
4.0-10.0 kV high voltage adjustment range
Русский