Hochspannungsverstärker

The HA51U series amplifiers are available in a robust modular metal case or as 3U cassette versions. The modular units can be used as a table-top device or built into an appliance.
The HAR-51-4M is a 19"/3U subrack for up to 4 high voltage amplifier cassette modules HA51...-3.
It features internal power supplies, cooling fans, a common Interlock input for all channels and an HV OFF button.
Customized and full custom models are available on request. 

The HA2B5-S and HA3B3-S are high precision high voltage amplifier 3U / 8HP / 220mm plug-in cards. The amplifier output is available via an SHV connector located on the front panel. Signal gain is 200 (HA2B5-S) or 300 (HA3B3-S), the input voltage range is ±10V. The amplifier features high precision, very high DC stability, high speed as well as very low ripple and noise. The amplifier output is driven by a linear four quadrant high voltage power stage featuring very low distortion. It easily drives capacitive and resistive/capacitive loads.
Two amplifier modules can be configured to provide differential output voltages.
The output voltage is controlled by means of a differential setpoint input . The amplifier is equipped with a voltage and current monitor and a TTL compatible INHIBIT input.
The output is protected against overcurrent, short circuit, overvoltage and high voltage flashover / arc.
A safety interlock circuit is provided to integrate the unit into an emergency shutdown circuit.

The HAR42-4 is a tabletop subrack 4U / 42HP to accommodate up to 4 high voltage amplifier modules HA2B5-S or HA3B3-S. Both models can be combined in a single subrack. It features internal power supplies 24V, cooling fans, a common interlock input for all channels and a HV off button.
The high voltage amplifier channels can be remotely switched off (not for safety relevant purposes) through the DISABLE input available on the HAR42-4 rear panel.
The amplifier modules incorporate an interlock circuit through which the supply voltage of the high voltage sources is switched. Pins for an external interlock circuit and the HV off palm button are looped into the interlock circuit.
Two amplifier modules can be configured to operate in a differential output mode. In this configuration, only amplifier 1 (Master) receives the input signal from the signal source. Amplifier 2 (Slave) receives the inverted input signal through the backplane of the subrack. This mode can be used e.g. to differentially drive two deflection plates or to drive a floating load with up to 8000V_PP.

The precision high voltage amplifier HA05B2 is a standard 19" plug-in unit of 3U / 6HP. The output voltage is -500V to +500V at load current of ±2mA. The control voltage ranges from -10V to +10V and the gain is 50.
The amplifier features high precision, very high stability and low noise, thereby making the unit well suited even for voltage reference applications.
The output voltage is controlled by a control voltage which can be either provided via its nominal value input or set by a 10-turn potentiometer. Monitor outputs for voltage and current are provided. Furthermore, the unit is equipped with a fast inhibit input effectively clamping the output voltage to 0V.
The output is protected against overload, short circuit and transient overvoltage.
High-Speed versions up to 15kHz bandwidth / 50V/µs slew rate are available on request.
The mainframe HAR12 is available to accommodate up to 12 amplifier plug-in cards.

The HAR12 is a 19"/3U mainframe to be equipped with high precision HV amplifier modules HA05B2.
The mainframe is supplied by mains voltage and accommodates up to 12 amplifier modules. It features internal power supplies, high voltage converters, cooling fans and a common Interlock input for all channels. This subrack may be used in rack mounted or bench top applications.

Both the output voltage and the load current of each channel can be displayed on 4½ digit DVMs. A switch is provided for selection of the channel to be measured.

All output connectors are SHV type, mounted on the rear panel.

Rack mountable Precision High Voltage Amplifier in a 19" 7U high subrack. Sixty-four independent amplifier channels provide output voltages in the range of -200V to +600V (HAR-8X8A) or -500V to +500V (HAR-8X8B) at output currents of ±10mAp. The output voltage of each channel can be controlled by means of a setpoint input.
Differential amplifiers on the setpoint inputs prevent any ground loops and provide excellent noise suppression.
Each channel is equipped with an output voltage monitor.
The unit consists of 8 amplifier modules with 8 channels each. The amplifier channels feature high precision, high stability as well as very low ripple and noise. The amplifier outputs are protected against overload, short circuit and over-temperature.
The amplifier is optimized for driving multi-channel capacitive or resistive-capacitive loads. It can easily drive electroactive polymer actuators, piezo elements, electrorheological fluids, ion beam deflectors and many other loads.
The high voltage outputs are protected against overload, short circuit and overvoltage. Operating states and fault conditions are displayed on the front panels.
A safety interlock circuit is provided to integrate the unit into an emergency shutdown circuit.
In addition to the standard output voltage ranges -200V to +600V and -500V to +500V a version with output voltage range of 0 to +1000V is available. Different output voltage ranges can be installed in a single mainframe simultaneously in groups of eight.
Customized and full custom models are available on request.

The PAD Series comprises high power operational amplifiers for industrial applications.
With a new concept for component amplifiers, these hybrid circuit designs feature surface mount component construction on an insulated metal substrate.

Integrated heat sink and fan provide optimum cooling. The new approach decreases weight and system complexity while increasing power density. The PAD modules achieve up to 450W output power while occupying a small PCB surface area.