High-voltage control power supply and telemetering acquisition circuit for spacecraft

A technology of acquisition circuit and high-voltage control, which is applied in the field of aerospace telemetry, can solve the problems of low stability and safety of control signals, achieve the effects of improving stability and safety, increasing output capacity, and reducing possibility

Pending Publication Date: 2022-05-13
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this patent document has the problem of low stability and security of the control signal

Method used

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  • High-voltage control power supply and telemetering acquisition circuit for spacecraft
  • High-voltage control power supply and telemetering acquisition circuit for spacecraft
  • High-voltage control power supply and telemetering acquisition circuit for spacecraft

Examples

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Embodiment 1

[0056] Such as Figure 1~3 As shown, this embodiment provides a high-voltage control power supply and telemetry acquisition circuit for a spacecraft, including a drive control circuit, a power output circuit, and a telemetry acquisition circuit. The drive control circuit is connected to the power output circuit, the power output circuit is connected to the telemetry acquisition circuit, the drive control circuit provides control voltage signals for the power output circuit, the power output circuit is used for power input and power output, and the telemetry acquisition circuit is used for voltage telemetry and current telemetry. output.

[0057] The driving control circuit includes a filter U1, a DC-DC converter U2, a resistor R1, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4 and a diode D1. One end of the resistor R1 is connected to an external voltage, the other end of the resistor R1 is connected to the first input end of the ...

Embodiment 2

[0063] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0064] Such as Figure 1~3 As shown, this embodiment provides a high-voltage control power supply and telemetry acquisition circuit for a spacecraft, including a drive control circuit, a power output circuit, and a telemetry acquisition circuit.

[0065] The drive control circuit includes: switch relay K, filter U1, DC-DC converter U2, resistors R1~R4, capacitors C1~C4, diode D1, voltage regulator tube D2, the output of the relay switch K passes through the filter U1 and is connected to the DC- The DC converter U2 is connected, and the output terminal of U2 is connected in parallel with C1 and C2, R3 and R4, and after passing through the diode D1, the output terminal is connected in parallel with C3, C4 and D2, wherein D1 and R2 are connected in parallel, and C3 and C4 are connected in parallel with D2. The power output circuit includes: power N-MOS transistors U3 ...

Embodiment 3

[0071] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0072] The specific working process of the circuit, such as Figure 1~3 As shown, the output of the dual-power N-MOS tube is precisely controlled through the relay and the DC-DC converter, the current is collected by the current sampling resistor, the power line is collected and output through the triode current telemetry, and the voltage telemetry is output through the voltage dividing resistor.

[0073] The switch command controls the relay to output 28V voltage to the DC-DC converter, realizes the isolation of the front and rear voltages, and generates the drive signal of the power N-MOS tube, drives two parallel power N-MOS tubes to conduct, and controls the power of the high-voltage power supply output.

[0074] The R2, C3, and C4 parameters in the drive control circuit can adjust the power output waveform at power-on and the delayed shutdown waveform at power...

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Abstract

The invention provides a high-voltage control power supply and telemetering acquisition circuit for a spacecraft. The high-voltage control power supply and telemetering acquisition circuit comprises a driving control circuit, a power output circuit and a telemetering acquisition circuit, the driving control circuit is connected with the power output circuit, and the power output circuit is connected with the telemetering acquisition circuit; the driving control circuit provides a control voltage signal for the power output circuit; the power output circuit is used for power input and power output; and the telemetering acquisition circuit is used for outputting voltage telemetering and current telemetering. The power supply safety and stability are ensured through the DC-DC driving power N-MOS tube, and accurate monitoring and fault mode analysis of power supply can be realized through the accurate telemetering acquisition circuit.

Description

technical field [0001] The invention relates to the technical field of aerospace telemetry, in particular to a high-voltage control power supply and telemetry acquisition circuit for a spacecraft. Background technique [0002] The power of spacecraft products is increasing day by day. Too high current brings higher heat loss, which exceeds the rated current value of the device, increases unreliability and instability, and reduces the service life of the spacecraft. Increasing the bus voltage of the spacecraft can eliminate the adverse effects caused by the increase in current. Traditional spacecraft power distribution is mostly controlled by relays. Higher voltages make the relays more prone to arcing, which seriously affects the service life of the relays. The advantages of high voltage and large current are the current trend for the research on the use of power MOSFETs as power supply and distribution control devices for spacecraft. It is of great significance to study saf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042H02M1/08H02M3/04
CPCG05B19/0423H02M1/08H02M3/04G05B2219/24215
Inventor 宋文磊党建成周军丁锋锋屈炜
Owner SHANGHAI SATELLITE ENG INST
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