The CTS-60 series consists of PWM DC-DC converters, with a galvanic isolation between input and output. The converters operate at a fixed switching frequency and use push-pull converter topology.
Voltage feedback is performed by transferring the error signal from the output to the primary side through an optocoupler, where the PWM circuit changes the pulse width as required to keep the voltage output stable.
For maximum regulation, the remote sensing terminals can be connected to the load. This will allow a power cable voltage drop of up to 0.3 V on each cable to be offset.
The device is protected against overload and short-circuit by means of a current limiting circuit.
The device is also protected against reverse polarity input voltage, and the input fuse blows if an improper connection is made.
When a converter input undervoltage condition occurs, the converter is disabled, thus preventing the battery from becoming totally discharged.