JPH04808A - Matrix redundant system for high output amplifier - Google Patents

Abstract

PURPOSE:To reduce the rate of a fault and to improve the reliability of the system by providing the system with a satellite bus line connected to a power supply part and four matrix switches, which are inserted to the interfaces of respective RF parts and the power supply part, to be controlled by the two systems of control signals interlocked with a command signal and an ON/OFF command signal. CONSTITUTION:In the case of a normal operation of the system, an input side RF switch 1 and an output side RF switch 2 is turned to the selection of a main system high output amplifier, and an RF signal is amplified by an RF part 3. Then, a power supply part 4 supplies a voltage to the RF part. Matrix switches 11 and 12 are controlled by control signals 15 and 16 so that the RF part 3 and the power supply part 4 can be connected. When any fault is generated in the main system RF part, the matrix switch 12 is changed over to select an auxiliary system RF part and the matrix switch is changed over to select the main system power supply part according to the control signals 15 and 16. Then, the RF switch of an input/output simultaneously selects the auxiliary system RF part according to a telecommand signal 8 for switching.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a redundant system for high-output amplifiers mounted on a satellite, for example.

[Prior Art 1] Conventionally, there has been a system of this type as shown in the block diagram of FIG. (1) is the input side RF switch, (
2) is the output side RF switch, (3) is the main high power amplifier RF section, (4) is the main high power amplifier power supply section, (5) is the standby high power amplifier RF section, and (6) is the standby high power amplifier RF section. Output amplifier power supply section, (7) is the satellite path line, (8) is the telecommand signal that instructs the switching of the RF switch, (9),
(lo) indicates an on/off telecommand signal that instructs to start/stop the main and standby high-output amplifier power supply units, respectively.

Next, the operation will be explained. During normal operation, the input side RF
Both the switch (1) and the output side RF switch (2) select the main high output amplifier, and the RF multiplied signal is amplified by the RF section (3), and the power supply section (4) supplies voltage to the RF section.・: When the standby high-output amplifier has an RF section (5), a power supply section (
6) Both are stopped. At this time, the satellite pass line also supplies voltage to the standby power supply section. When a failure occurs in the main high-output amplifier, the on/off telecommand (10) of the standby high-output amplifier sends an on command to put the standby high-output amplifier in standby mode, and sends the switching telecommand signal (8). The main high-output amplifier is immediately switched to the standby high-output amplifier, and an off command (9) is sent to the main high-output amplifier to stop it.

[Problems to be Solved by the Invention] The conventional redundant system of high-output amplifiers on board satellites is configured as described above. If a failure occurs in one of the systems, there is a problem in that it is necessary to discard operable equipment and switch to a backup system.

This invention was made to solve the above-mentioned problems, and aims to provide a system with a further reduced failure rate.

[Means for Solving the Problems] The matrix redundancy system for high-output amplifiers according to the present invention replaces only the RF section and power supply section that constitute the main system in which a failure has occurred with the backup system. The interface between the RF section and the power supply section of the high-output amplifier constituting the redundant system is arranged in a matrix so that the redundant system can be configured.

1. The matrix redundant system of the high-output amplifier according to the present invention can realize a redundant system with a lower failure rate than the conventional redundant system by arranging the interfaces between the two RF parts and the power supply part in a matrix form.

Embodiment 3 An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (1), (2), (3), (4), (5
), (6).

(7), (8), (9), and (10) are exactly the same as the conventional system. (Monday), (22),
(13), (+4) are matrix switches ■, ■,
■ and ■ are shown, respectively. (15) indicates a control signal 1 that controls the matrix switches (1) and (1). (16) indicates a control signal 2 that controls the matrix switches (2) and (2).

Next, the operation will be explained. During normal operation, the input side RF
Both the switch (1) and the output side RF switch (2) select the main high-output amplifier, the RF multiplied signal is amplified by the RF section (3), and the power supply section (4) supplies voltage to the RF section. Matrix switch (11), Matrix switch (
12) is controlled by control signals 1 (15) and 2 (16>) so that the RF section (3) and power supply section (4) are connected.At this time, the standby high-power amplifier is connected to the RF section. (5
) and the power supply section (6) are both stopped, so the 2 matrix switch ■ (13) and matrix switch ■ (14)
) may be a don't care.

When a failure occurs in the main RF section, the matrix switch ■ is switched to the backup RF section by control signals 1 and 2 to select either the matrix switch or the main power supply section, and at the same time, the human output RF switch is switched to the standby RF section. The backup RF section is selected by the telecommand signal (8).

Next, we will explain what happens when a failure occurs in the power supply section of the main high-output amplifier during normal operation.

At this time, an on command is sent to the on/off command signal (10), and the standby power supply section is turned on. The matrix switch (2) is switched by the control signal 1, and the matrix switch (2) is switched by the control signal 2 so that the main RF section and the standby power supply section are connected. And on
An off command (9) is sent to the main power supply section, and the main power supply section is stopped.

εEffects of the Invention] As described above, according to the present invention, except when the same parts of the main and standby high-output amplifiers fail consecutively, reliability is achieved with a lower overall failure rate than the conventional system. This has the effect of providing a highly redundant system.

[Brief explanation of drawings]

FIG. 1 shows a satellite-mounted device according to an embodiment of the present invention. (1) is the input-side RF switch of the high-power amplifier, (2) is the output-side RF switch, and (3) is the RF switch of the main high-power amplifier.
, (4) is the power supply section, (5) is the RF section of the standby high-output amplifier, (6) is the power supply section, (7) is the satellite pass line, and (8) is the input/output RF switch switching command. signal, (9) is the on/off command signal for the main power supply section, (10) is the on/off command signal for the standby power supply section, (I 1) is the matrix switch ■, (12) is the matrix switch ■, ( 13) is a matrix switch ■, (14) is a matrix switch ■,
(15) and (16) indicate matrix control signals. Note that in the two figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] High-output amplifier that switches RF signals using command signals RF sections of two high-output amplifiers placed in parallel to a pair of input/output RF switches and a power supply whose operation/non-operation is controlled by on/off command signals The 4-channel controller is inserted into the interface of the satellite path line connected to the above power supply section, each RF section, and the power supply section, and is controlled by two systems of control signals linked to the above command signal and on/off command signal. A matrix redundant system for high output amplifiers, characterized by comprising a matrix switch.