Layer Electronics have designed the CFA series frequency converters to give a stable output requested frequency when the input frequency is variable over big ranges. The CFA series frequency converter is the perfect solution for supplying loads from variable frequency and voltage generators without any other generator auxilium. A typical example of a variable frequency and voltage generator is the variable number of laps of an alternator, and this frequency converters typical application is for the power supply of refrigerating plants on lorries or boats. These plants have dedicated diesel generators, and the connection of the CFA to the lorry or boat alternator make the use of the diesel generators unnecessary, as the frequency converter will be able to give the stable voltage and frequency power supplying the refrigerators operation. Additionally, the use of a CFA series frequency converter cuts down the maintenance and refuelling expenses of the diesel generators.