Magnetic frequency multipliers and their rating part I ¿ Frequency triplers

THERE ARE a growing number of applications in which a source of power at a higher frequency than the standard 60 or 400 cps (cycles per second) is either necessary or desirable. Rotating machines, electronic generators, and magnetic frequency multipliers are some of the devices which may be employed to obtain such a power supply. Magnetic frequency multipliers have certain inherent advantages which are leading to an expansion of their use. In this respect they are quite similar to magnetic amplifiers. Both devices consist of rugged, static components which have a high degree of reliability with a long life and which require little or no maintenance. They are available for use immediately after power is applied. They can be designed to meet the requirements of military specifications for operation under vibration, high shock, and extremes in ambient temperature. The major undesirable features of magnetic frequency multipliers are the low-input power factor and the relatively large size of the equipment. With the development of better core materials and circuits, a considerable improvement in these features has recently been achieved. Power at frequencies of two, three, four, five, or six times the input frequency may be generated with reasonable efficiency.