There are many applications where an interlock function for the output is required according to machine guidelines. This is a safety-relevant topic that should not be ignored. There are different levels
For a customer we designed, built and delivered a DC source with an output voltage of 0 - 32 VDC and an output current of 0 - 8600 A with an output power of 252 kW. The challenge in this project..
Today we are showing a customer project that has just been realised. The customer required a DC source with low voltage and high current. The following specifications were realised in this project: 63 kW output power and an output voltage of 30 VDC and an output current of 2100 A.
In the different branches like industry, research, automotive, railway, aerospace, automation and system integration there are many applications where the required laboratory power supply has to be connected to the application via a longer cable. From a technical point of view, this leads to a voltage drop via the power resistor and the voltage applied to the consumer is therefore lower than the output voltage set at the DC source.
A galvanically isolated analog interface is mainly used in automated systems for test procedures, production processes and stand-alone systems. Since the systems are controlled by PLCs, an analogue interface with galvanic isolation and a control level of 0-10 V or 0-5 V is ideal for this application.
Decoupling diodes are used to protect against unwanted reverse voltage into the laboratory power supply and to protect against overvoltages that do not reach 150% of the maximum output voltage. Semiconductor diodes are connected in series to the output. This feature avoids energy being discharged into the output circuit when batteries are connected to the DC source.
Free-wheeling diodes are used for protection against overvoltage when an inductive DC load (e.g. electric motor, relay coil, solenoid) is switched off. For this purpose, semiconductor diodes are connected in parallel to inductive DC loads so that they are stressed by the supply voltage in the reverse direction.
Increasingly, fast test signals are required in connection with high power. Whether for the simulation of on-board voltages or for the generation of interference pulses. By reducing the output capacitance while using film capacitors, the rise and fall time is reduced by a factor of 10 compared to the standard value.
Electric cars, e-bikes, e-scooters and more.: The future will be electric. Our laboratory power supplies are just as future-proof. Today we are already actively shaping the future of e-mobility with our customers. With DC - sources from 750 W to 1.4 MW and output voltages up to 2000 VDC we can cover the whole spectrum of applications.