High power audio frequency transmitter
US4314374A · kind A · utility
3Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1977 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Nov 10, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A high power amplitude modulated audio frequency transmitter having a Twin-T low frequency oscillator, a tickler coil high frequency oscillator, a switching regulator and a switching amplifier. The Twin-T low frequency oscillator produces a sine wave modulating signal which is fed to the switching regulator. The tickler coil high frequency oscillator produces a carrier signal which is fed to the input end of the switching amplifier. The output signal of the switching regulator is fed to the output end of the switching amplifier so that a sine wave modulated signal is developed on the output of the switching amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.