Professional series
Power supplies from FuG for every voltage and
application range – customized and in series

Low voltage power supplies

Reference picture*
Power
Power range up to 100.000W
Voltage
Output voltage 6,5V up to 350V, continuously adjustable from zero to maximum
Applications
Double stabilization with thyristor pre-control and linear control
Double stabilization with thyristor pre-control and linear control
Series NTN from 6.5V to 350V / 35W to 100kW
The mains voltage is transformed to the appropriate level. On the secondary side of the transformer is a thyristor controlled rectifier stage (phase cutting circuit), the output of which is used to charge a capacitor bank. This capacitor bank is also connected to the final series regulating transistor output stage. By controlling the conduction angle of the thyristors after each zero-crossing of the sinusoidal voltage, the flow of energy is regulated in such a way as to have a defined voltage drop across the final series transistor stage (pre-regulation). The performance of the final series transistor stage defines the final stability of the output voltage (main regulation).
Special features
thyristor control
thyristor control
Linear control
Linear control
Series NLN from 6.5V to 500V / 35W to 1.4kW
The mains voltage is transformed to the appropriate level and rectified. The rectified voltage charges a bank of capacitors of the intermediate circuit to a constant voltage, which it is given via a set of power transistors to the output. The series transistor defines the final stability of the output voltage and the regulation speed. Optionally a set of power transistors parallel to the output can act as a current sink to provide active pull down ability. The design of linear regulated power supplies is optimized for fast programming speed.
Special features
Bipolar linear control
Bipolar linear control
Serie NLB from 6.5V to 350V / 35W to 1.4kW
Bipolar linear regulated power supplies supply one output voltage, where the value and polarity is adjustable. The mains voltage is transformed to the appropriate level and rectified. The rectified voltage charges a bank of capacitors of the intermediate circuit to a constant voltage, which it is fed, via a set of serial power transistors, to the output. The output stages of the positive and the negative circuits are switched together in a push-pull manner. The regulation transistors define the final stability of the output voltage and the regulation speed. Bipolar power supplies are able to operate as 4-quadrant power amplifier (optionally also for active loads).
Special features
Double stabilization for superconducting magnets
Double stabilization for superconducting magnets
Serie NTS
Designed specifically for superconductivity applications, this superconductivity power supply family is series regulated via a set of parallel transistors which are driven from a pre-regulation stage which utilises phase controlled thyristors. In this manner, the power lost across the output transistors is kept to as minimum. Thus, the final control element always has a low power dissipation in energizing and static constant current mode. In de-energizing mode, the transistor stage is working as a current sink and the power is dissipated by means of either air or water cooling.
Special features
Medium Voltage Power Supplies

Reference picture*
Power
Power range up to 70.000W
Voltage
Output voltage 125V up to 2000V, continuously adjustable from zero to maximum
Applications
Switch mode regulation
Switch mode regulation
Series MCP from 125V to 2kV / 14W to 15kW
In principle, the rectified line voltage drives a square wave generator of fixed frequency, whose AC voltage is transformed, rectified and filtered, producing the output voltage. For regulation, the square wave voltage is pulse width modulated. A low residual ripple of the output voltage, together with a high stability, high regulation speed and a low stored energy are all achieved by virtue of the high switching frequency.
Special features
Thyristor regulation
Thyristor regulation
Series MYN from 650V to 2kV / 21kW to 50kW
A transformer is used to transform the mains supply to high voltage. Either on the primary side or on the secondary side of this transformer a phase controlled thyristor rectifier circuit is fitted. A series LC filter is used to smooth the resulting rectified voltage.
Special features
Autoranging
Autoranging
Series MCA from 150V to 3000V / 750W to 9000W
The NCA/MCA series is an auto ranging power supply design in which the power supplies operate over the full range of their output voltage & current, up to the units maximum rated output power. This results in an operating range which is up to 3-times wider than that of a more conventional power supply. When fitted with the optional computer interface, the MCA/NCA series become versatile programmable power supplies. In principle, the rectified line voltage drives a square wave generator, whose AC voltage is transformed, rectified and filtered, producing the output voltage. For regulation, the square wave voltage is pulse width modulated.
Special features
High Voltage Power Supply

Reference picture*
Power
Power range up to 50.000W
Voltage
Output voltage 125V up to 300.000V, continuously adjustable from zero to maximum
Applications
Switch mode regulation
Switch mode regulation
Series HCP from 3.5kV to 300kV / 14W to 15kW
In principle, the rectified line voltage drives a square wave generator of fixed frequency, whose AC voltage is transformed, rectified and filtered, producing the output voltage. For regulation, the square wave voltage is pulse width modulated. A low residual ripple of the output voltage, together with a high stability, high regulation speed and a low stored energy are all achieved by virtue of the high switching frequency.
Special features
Switch mode regulation for high power (with air or oil insulation)
Switch mode regulation for high power (with air or oil insulation)
Special features
Thyristor control
Thyristor control
Switch mode regulation as Cassette
Switch mode regulation as Cassette
Special features
Bipolar Switch mode regulation
Bipolar Switch mode regulation
Series HCB from 1.25kV to 20kV / 1.4W to 200W
Bipolar HV power supplies consist of 2 switch-mode controlled HV sources which are connected to the output. In principle, the rectified line voltage in each source drives a square wave generator of fixed frequency, whose AC voltage is transformed, rectified and filtered, producing the positive or negative output voltage. For regulation, the square wave voltage is pulse width modulated. The operation is contra-moving, and the output can be adjusted with continuous zero crossing.
Special features
capacitor chargers

Reference picture*
Power
Charging power range up to 20.000J/s
Voltage
Output voltage 2.000V up to 65.000V, continuously adjustable from zero to maximum
Applications
Output voltage 2.000V up to 65.000V, continuously adjustable from zero to maximum
The capacitor charging high voltage DC power supplies are designed specifically to the requirements of capacitor charging or capacitor conditioning, i.e. they have a more heavily designed output resistor to withstand a pulsed load and a regulating circuit, optimized for fast switching over between current and voltage regulation and vice versa. In principle, the rectified line voltage drives a square wave generator of fixed frequency, whose AC voltage is transformed, rectified and filtered, producing the output voltage. For regulation, the square wave voltage is pulse width modulated.
Special features
* Product representation may differ from end product due to different design
Contact
Your contacts on site and on the net
FuG Elektronik GmbH
Am Eschengrund 11
D-83135 Schechen