Communications: directive radio wave systems and devices (e.g. – With particular circuit
Patent
1986-12-29
1989-03-21
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
455127, 323222, 323284, G01S 728, H04B 104, G05F 1613
Patent
active
048147702
ABSTRACT:
A power supply apparatus for a radar system of the type which has a control box including signal processing means and a source of electrical power, an antenna unit remote from the control box and including an antenna, a transmitter, a receiver and an IF amplifier, and a coupling cable of variable length between the control box and the antenna unit, the coupling cable coupling signals to and from the antenna unit as well as a power supply voltage and a tuning control voltage. The power supply apparatus comprises a switching mode power supply circuit having an input supplied with the power supply voltage and an output for providing a substantially stable output supply voltage for the receiver. A feedback circuit is responsive to the output supply voltage and is coupled to a control input of the switching mode power supply circuit for adjusting the operation of that circuit so as to maintain the output supply voltage substantially stable. A voltage regulator is coupled to receive the output supply voltage and respond thereto for supplying an IF power supply voltage to the IF amplifier. The power supply voltage that is supplied to the switching mode power supply circuit also is used as a transmitter power supply voltage.
REFERENCES:
patent: 4097863 (1978-06-01), Chambers
Barron Jr. Gilberto
International Marine Instruments, Inc.
Tarcza Thomas H.
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