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High voltage analog power amplifiers

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB
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LE 430/015 single channel amplifier +430 V output

Special features
Potentiometer "Offset", "Amplitude", Current Booster, Monitor output

Input
Input +/-5V (+/-10V see Special features)
Input resistance: 10kOhm
Input connector: BNC

Output:
Voltage range: 0V thru +430V
Max. peak current
: approx. 150mA
Max average current: approx. 35mA
Gain: 85
Noise: approx. 50mVpp
Connector: LEMOSA 0S.250 (BNC adapter available)
Display: LCD, 3 digit
Dimensions: WxDxH 185x330x150mm
Weight: approx. 4kg

LE 430/015

Frequency Response
LE 430/015 chart

Risetimes:
(for square wave input signal)
Load
capacitance
risetime
to 300V/430V
1.2µf
660 nf
330 nf
100 nf
30 nf
2 msec / 3 msec
1 msec / 1.4 msec
0.5 msec / 0.7 msec
180 µsec / 250 µsec
70 µsec / 100 µsec
Options:
Multichannel arrangements: on request
Amplifier for 200 V output: on request

Computer Interfaces:
Optionally, the amplifier LE 430/015 can be equipped by a serial or parallel (CENTRONIX) computer interface (designation as LE 150/025-S or /-P respectively) for digital control by a fast data transfer and D/A conversion. Up to 3 channels can be operated simultaneously.
All analog functions of the amplifier remain active. By using "offset" the amplified signal can be superimposed by a DC-voltage and the operating voltage range can be varied by "amplitude" for easy adaptation to a distinct application. The resolution is 12 bit.

Order Code:
LE 430/015       Analog amplifier
LE 430/015-S   with additional serial interface
LE 430/015-P   with additional parallel interface

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB

LE 1000/035 single channel amplifier +1000 V output

Special features
Potentiometer "Offset", "Amplitude", Current Booster, Monitor output

Input
Input +/-5V (+/-10V see Special features)
Input resistance: 10kOhm
Input connector: BNC

Output:
Voltage range: 0V thru +1000V
Max. peak current
: approx. 350mA
Max average current: approx. 100mA
Gain: 200
Noise: approx. 50mVpp
Connector: LEMOSA 0S.250 (BNC adapter available)
Display: LCD, 3 digit
Dimensions: WxDxH 260x340x160mm
Weight: approx. 4.5kg

LE 1000/035

Frequency Response
LE 1000/035 chart

Risetimes:
(for square wave input signal)
Load
capacitance
risetime
to 1000V
200 nf
1 µf
5 µf
approx. 0.5 msec
3 msec
15 msec
Options:
Multichannel arrangements: on request

Unipolar amplifier LE 500/070
Output voltage 0 V thru +500 V, peak current approx. 700 mA current approx. 250 mA

Bipolar amplifier LE 500/035 bip
Output voltage +/-500 V, peak current approx. 350 mA, mean current approx. 100 mA

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB

LE 1000/100 single channel amplifier +1000 V output

Special features
Potentiometer "Offset", "Amplitude", Current Booster, Monitor output

Input
Input +/-5V (+/-10V see Special features)
Input resistance: 10kOhm
Input connector: BNC

Output:
Voltage range: 0V thru +1000V
Max. peak current
: approx. 1000mA
Max average current: approx. 300mA
Gain: 200
Noise: approx. 50mVpp
Connector: LEMOSA 0S.250 (BNC adapter available)
Display: LCD, 3 digit
Dimensions: WxDxH 160x380x120mm
Weight: approx. 5.5kg

LE 1000/100

Frequency Response
LE 1000/100 chart

Risetimes:
(for square wave input signal)
Load
capacitance
risetime
to 1000V
200 nf
1 µf
5 µf
approx. .2 msec
1 msec / 1 msec
5 msec
Options:
Multichannel arrangements: on request

Unipolar amplifier LE 500/200
Output voltage 0 V thru +500 V, peak current approx. 2000 mA current approx. 700 mA

Bipolar amplifier LE 500/100 bip
Output voltage +/-500 V, peak current approx. 1000 mA, mean current approx. 300 mA

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB

High efficiency power recharger amplifiers RCV
The basic philosophy of switches recharging amplifiers is described in sec 4.3
US EuroTek, Inc. offers recharging amplifiers for average powers of 500 Watts up to the kWatt range.
Because recharging amplifiers have to be adapted to some extent to the capacitance of the actuator and the desired driving conditions, a detailed offer is made after receipt of specifications and requirements.
Generally, the device can be matched to an application within the stated limits.
Voltage range: -600 V to +600 V
Peak currents: up to 10 A
Peak power: 2 kW
Average power: 500 W
Ripple/noise by switching mode: approx. 200 mV
Power efficiency with loss-free capacitive load: >95%
(definition see sec 2.5)
Example:
E.g. RCV amplifiers have been developed for active vibration cancellation showing following data
Load capacitance: approx. 20 µf
Operating frequency: up to 400 Hz
Voltage range: +/- 200 V
Max. peak current: 10A
Risetime for a 200V voltage step at 5 µf load: 100 µsec.

RCV

If you are thinking about recharging amplifiers for your application, contact us.

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB

Power pulsers HVP
The HVP switches/pulsers show operational levels
positive square wave=charging of actuator
negative square wave=discharging of actuator
zero level=output neutral: no charge transfer=steady state of actuator.
The internal supply (source) voltage of the HV pulser can be set by a potentiometer and is shown on the front panel LC display. The specific peak currents are achieved for max. supply voltage setting.

HVP

General data:
Input:
signal "high" = charging of actuator: >+3V
signal "low" = discharging of actuator: <-3V
signal "neutral" no charge transfer: 0V
Connector: BNC
Output:
Voltage/currents see listing
Average power: 50 Watts
Minimum pulse width: approx. 3µsec
Repetition rate: up to 50kHz
Connectors: LEMOSA 0S.250 and 2 banana pin plugs
Display: 3 1/2 digit LCD
Dimensions: WxDxH: 260x340x160
Weight: 4.5kg

Types

max. voltage peak currents load resistors time constant RC/
for load capacitance
V A Ohms
HVP 200/50 +200 50 4 40µsec/10µF
HVP 200/100 +200 100 2 20µsec/10µF
HVP 500/20 +500 20 25 25µsec/1µF
HVP 500/50 +500 50 10 10µsec/1µF
HVP 500/100 +500 100 5 5µsec/1µF
HVP 1000/10 +1000 10 100 50µsec/0.5µF
HVP 1000/20 +1000 20 50 25µsec/0.5µF
HVP 1000/50 +1000 50 20 10µsec/0.5µF
Options: HVP can be supplied for: altered source voltages; altered current ratings; and higher average powers

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB

Power resistor box PRB:
The peak current of a HVP switch can be reduced by using the external resistor box PRB e.g. for adaptation to a lower capacitance actuator. It contains 3 power resistors of different ratings and is connected between HV-switch and actuator.
The resulting peak current is determined by the total resistance of the arrangement:
internal resistor of switch (see listing) + the external resistor.
The box is equipped with one input coax cable/LEMOSA 0S.250 plug. Each resistor has its individual output connector and is selected thereby.
PRB I: 1 resistor 2 Ohms
1 resistor 5 Ohms
1 Resistor 10 Ohms
PRB II: 1 resistor 10 Ohms
1 resistor 20 Ohms
1 Resistor 50 Ohms

PRB

Input / output connectors: LEMOSA 0S.250 (BNC adapters available).

LE 430/15 | LE 1000/35 | LE 1000/100 | RCV | HVP | PRB
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