Our Micro 100 and Micro 200 regulators combine current control, circuit protection and front-panel monitoring, with different technologies to suit specific project requirements.
The Micro 200 CCR uses pulse width modulation (PWM) control of an IGBT H-bridge to produce a sinusoidal output current. It is designed to supply lighting circuits containing LED and conventional fixtures, as well as other electronic devices.
Its control electronics continuously monitor and adjust the output waveform, providing a fast response to load changes and circuit switching. The design combines high power factor performance and low harmonic content with protection against overcurrent and open-circuit faults.
The Micro 100 Constant Current Regulator is a microprocessor-controlled unit incorporating a high-speed analogue control and protection loop. It uses an anti-parallel pair of power thyristors to provide phase-angle control, regulating the current supplied to the airfield lighting series circuit.
Both models can interface with an airfield lighting control and monitoring system. Depending on the selected configuration and fitted interface, control and communication options include:
Both CCRs feature a front-mounted display, giving operators and maintenance teams access to operating information, status indications and alarms without connecting a laptop. Additional monitoring functions are available depending on the selected options.
Our wider range also includes the Micro 100+ Constant Current Regulator and associated equipment such as series circuit cut-out switches.
Our airfield lighting constant current regulators combine accurate current regulation with circuit protection to support reliable operation. Built-in monitoring helps maintenance teams identify operating conditions and investigate faults.
A choice of control interfaces allows our CCRs to work with compatible airfield lighting control and monitoring systems. The appropriate interface can be selected to suit your airport’s existing infrastructure and project requirements.
Access operating information and alarm indications directly from the CCR. The front-mounted display helps operators and maintenance teams check the unit’s status without connecting a separate computer.
Front-panel parameter adjustment helps simplify configuration, allowing operating settings to be matched to the requirements of each lighting circuit. This supports installation and commissioning while providing access for future adjustments.
An IGBT constant current regulator, or CCR, is used to regulate the power quality in airfield lighting circuits. The CCR contains state-of-the-art electronics that monitor the waveform of the power source, adjusting it many times each second to give a reliable sinusoidal output.
Devices like ATG Airports’ Micro 200 CCR power both types of AGL lighting either tungsten halogen or primarily LED lighting fixtures.
IGBT CCRs are used for a variety of reasons in airfield lighting circuits. They can level out imperfections in the incoming mains power, providing runway and taxiway lights with a smooth sinusoidal signal that reduces the risk of damage due to excess current and other fluctuations.
An IGBT constant current regulator can balance the load across all of the LED fixtures in each runway circuit, protecting the sensitive electronics in each lighting fixture to help ensure that each LED unit function correctly.
ATG’s Micro 200 CCR contains an IGBT H-Bridge. This stands for Insulated-Gate Bipolar Transistor (IGBT) with the ‘H’ representing the shape of the circuit, with its four switching elements connected via a central cross-bar.
The IGBT H-Bridge uses Pulse Width Modulation to adjust the sinusoidal signal of the power supply thousands of times per second, improving the harmonic content of the current with a near-unity power factor. More details of this and other ATG CCRs can be found in the downloadable PDF data sheets on each page of our website.
Constant current regulators are designed to be used in extreme weather conditions, as any airfield might expect to encounter from time to time. This includes temperature ranges from -40 to +50 C, relative humidity from 10% to 95% and altitudes up to 2,000m above sea level. Again, full specifications for each product can be found in the PDF data sheet.
Each CCR is also designed to allow access to internal components without exposing other parts of the device, e.g. separate compartments for the fuses and input terminals, which do not expose the power compartment. Access panels in the front, rear and sides of the unit mean maintenance can be carried out conveniently.
Installed correctly, a CCR should provide thousands of hours of reliable operation. By definition, these units are designed to improve the reliability and consistency of the airfield power circuit. In the event of excess current, the fuses in the CCR can be replaced to restore operation, while the remainder of the AGL circuit should be left undamaged.
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