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Power Supplies / Sources

We offer around 1000 models of power sources, divided into DC models, AC models, DC+AC models nd multi-phase AC models. These have up to 1000+ kW power and have many high voltage and high current options. Depending on the application, there are single or multi-channel units where voltage and current are either fixed or programmable.
We also offer a variety of types of control. Our power supplies are very compact and, depending on the model, available with maximum power per height unit. Many sources can be used in master/slave operation, which allows high-power power supplies of up to 1MW+ to be realised. You have the choice between linear power supplies and switched-mode power supplies.

We offer around 1000 models of power sources, divided into DC models , AC models , DC+AC models nd multi-phase AC models . These have up to 1000+ kW power and have many high voltage and high... read more »
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Power Supplies / Sources

We offer around 1000 models of power sources, divided into DC models, AC models, DC+AC models nd multi-phase AC models. These have up to 1000+ kW power and have many high voltage and high current options. Depending on the application, there are single or multi-channel units where voltage and current are either fixed or programmable.
We also offer a variety of types of control. Our power supplies are very compact and, depending on the model, available with maximum power per height unit. Many sources can be used in master/slave operation, which allows high-power power supplies of up to 1MW+ to be realised. You have the choice between linear power supplies and switched-mode power supplies.

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1 From 6
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GW Instek GPD-2303S - View: front right Multiple Output Programmable Linear DC Power...
GW Instek (Good Will Instruments)
GW-GPD-Serie

2-, 3-, 4-channel, programmable, linear DC power supply unit with up to 195 W output power, output voltage 30 V, output...
Content 1 piece(s)
From €486.00 *
GW Instek APS-7100E - View: front AC Power Source | APS-7000E Series
GW Instek (Good Will Instruments)
GW-APS-7000E-Serie

APS-7000E Series, Output current up to 8,4 A, Output Voltage up to 310 V, Output Power up to 1000 VA
Content 1 piece(s)
From €1,650.00 *
GW Instek APS-7100 - View: front right Programmable Linear AC Power Sources | APS-7000...
GW Instek (Good Will Instruments)
GW-APS-7000-Serie

Suitable for simulating power grid and conducting inverter output characteristic tests, including synchronized phase and...
Price on request
GW Instek SPS-1820 - View: front right Switching DC Power Supply | SPS Series
GW Instek (Good Will Instruments)
GW-SPS-Serie

DC, Voltage: 12 V - 60 V, Current: 6 A - 30, Dual Measurement Display
Price on request
GW Instek PSB-2000 Series - View: front right Programmable Switching DC Power Supply |...
GW Instek (Good Will Instruments)
GW-PSB-2000-Serie

There are six models in the PSB-2000 series including a power booster unit.
Price on request
GW Instek PPX Series - View: front Programmable High-Precision DC Power Supply |...
GW Instek (Good Will Instruments)
GW-PPX-Serie

Programmable High-Precision DC Power Supply, voltage up to 100 V, power up to 108 W, current up to 5 A, low output noise...
Content 1 piece(s)
From €954.00 *
GW Instek GPR-M Series - View: front right Linear DC Power Supply | GPR-M Series
GW Instek (Good Will Instruments)
GW-GPR-M-Serie

GPR-M Series, single output, linear DC Power Supply, 180 W, linear DC power supplies, featuring all the same functions as...
Content 1 piece(s)
From €315.00 *
Linear DC Power Supply | GPR-H Series Linear DC Power Supply | GPR-H Series
GW Instek (Good Will Instruments)
GW-GPR-H-Serie

Linear, 360 W, 0 - 18 V, 0 - 20 A, 18.5 kg, 1 channel
Price on request
GW Instek ASR-2100R - View: front Programmable AC/DC Power Supply | ASR-2000 Series
GW Instek (Good Will Instruments)
GW-ASR-2000-Serie

Output Rating: AC 0 ~ 350 Vrms,DC 0 ~ ± 500 V, Output Frequency up to 999.9 Hz, DC Output (100% of Rated Power), Output...
Content 1 piece(s)
From €2,231.00 *
GW Instek PSU Series - View: front right Programmable Switching DC Power Supply |...
GW Instek (Good Will Instruments)
GW-PSU-Serie

Voltage Rating : 6 V - 600 V, Output Power Rating: 1200 W ~ 1560 W
Price on request
APM Technologies SP-1U/2U Series - View: front right Programmable DC Power Supply | SP-1U/2U Series
APM Technologies
AM-SP-1U-2U-Serie

Power: 600 - 4000 W, Voltage: 20 - 800 V, Current: 7.5 - 200 A
Price on request
APM Technologies SPS-300 series - View: front Linked 3-Phase AC System | SPS-300 series
APM Technologies
AM-SPS-300-Serie

Voltage: 150 V / 300 V or 300 V / 600 V, Current: up to 165.6 A / 82.8 A, Power: up to 20000 VA, Size: up to 21 U
Price on request
1 From 6

Interesting facts and frequently asked questions about power soures, laboratory power supplies and laboratory power supply units

Power supplies, which belong to the power sources, supply a defined current, as the name suggests - the opposite of which are electronic loads or drains that consume power.
Unlike a normal power supply unit, a laboratory power supply unit has certain characteristics that set it apart. Put simply, compared to simpler power supplies, a laboratory power supply offers more setting options and enables a more flexible range of use.
As a rule, the output voltage and the current limitation can be adjusted. Furthermore, they have analogue or digital displays for output voltage and current. In addition, they have a display for the set current and voltage values.

Advantages of laboratory power supply units

As a rule, a high-quality laboratory power supply unit is characterised by the following features:

 - Higher accuracy of the displays compared to usual power supplies
- The output(s) are normally protected against overload and short circuit
- They have an output that can be switched off
- Limit values for current, power and voltage can be set
- Voltage and current curves can be programmed
- An interface that enables control via PC
- A master/slave function that can be used to connect several units in series or parallel.

Where is a laboratory power supply used?

Laboratory power supplies are usually used in electronics development or in the testing and service sector. But the laboratory power supply is also frequently used among ambitious hobby electronics enthusiasts.
We distinguish the categories 0-100 V for lower power, up to 1000 V for more demanding applications, followed by most powerful devices up to 1 kV for use in electronics development.

What is meant by an adjustable power supply?

Adjustable or controllable power supplies offer the possibility to individually adjust the output voltage via a voltage regulator. Usually this amounts to 0-30V, but other max. output voltages are also possible with various adjustable power supplies.

Are laboratory power supplies controllable?

Laboratory power supplies always have a controller, so they are basically controllable power supplies. The output voltage (e.g. 0 - 30 volts) can usually be regulated, but in most cases the output current can also be regulated.

Current regulation in laboratory power supplies

High-quality laboratory power supplies are usually characterised by the fact that, in addition to voltage regulation, they also have current regulation (e.g. 0 - 5 A).

What is the difference between switching power supplies and linear power supplies?

What is the difference between a linear power supply, also called a transformer power supply, and a switching power supply? Each of these types of power supplies offers advantages and disadvantages that make them practical for the particular application.

Linear power supply

The linear power supply is technically simpler. First of all, the AC voltage is reduced to a lower value via a transformer. Then the AC voltage is converted into DC voltage and the energy is buffered. Finally, the voltage can be stabilised at a target value.
The advantages of a linear power supply are its simple construction and the fast and precise regulation of the output voltage. In addition, hardly any interference suppression measures are necessary.
The disadvantages lie in the size of the power supply unit itself and the size of the built-in transformer. As a result, they are bulky and heavy and have very high energy consumption.

Switching power supply

The more complicated switching power supply stores the AC voltage in a capacitor after rectifying it. Then an electronic switch supplies a small transformer with current in pulses. This leads to the DC voltage becoming AC voltage again, which is transformed in a transformer.

 The voltage is filtered and stabilised via capacitors.
The advantage of a switching power supply is that it allows for a more compact design with the same energy and thus has less weight. At the same time, they are more effective and economical in terms of energy consumption. Disadvantages are the more complex circuitry and the higher sensitivity to high-frequency interference. Smaller irregularities quickly become noticeable as a disturbance at the output.

Power supply, power supply unit and co.

Terms such as por supply and power supply unit are often thrown together, usually used synonymously, which can lead to confusion here and there. One speaks of a power supply in the case of simple "plug-in power supplies", such as those that come with a certain electronic device. This usually only provides a certain output voltage (such as 6V or 12V) and an output current. A power supply unit, on the other hand, is a more sophisticated device, for example, one in which the voltage can be adjusted.
The term “power supply”, or PS for short, is also frequently used. This can be translated quite simply as power supply unit.

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