HEATER CONTROL UNIT OF SPACE VEHICLE EQUIPMENT Russian patent published in 2018 - IPC B64G1/50 G05D23/19 

FIELD: astronautics.

SUBSTANCE: invention relates to the automatic system for providing the thermal mode of a space vehicle (SV). In the heater control module (HCM) of the SV equipment, individual functional units are grouped into unified functionally completed modules – microprocessor control module (MCU), heater switching module (HSM) and the temperature control module (TCM), wherein the MCU comprises the informing interface device, which is connected to the connector for connection to the external on-board computer, the microprocessor, random access memory, read-only memory device and the discrete data receiving device and the implemented input/output device (IOD) device, the HSM comprises sequentially connected drivers and power keys (PK), the outputs of which are connected to the connector for connection to the external electric heaters, and the implemented by IOD, TCM contains the series-connected measuring device, the inputs of which are connected to the connector for connection to temperature sensors, the analog switch and the analog-to-digital converter (ADC), wherein the information exchange ports of the IODs of all modules are interconnected via the intramodular main line. In the HCM of the SV equipment, the power control module containing the PK and the sequentially connected measuring device, the analog switch and the ADC, and also connected to the IOD intramodular main line, and the PK outputs are connected to the inputs of the measuring device and to the connector for connection to the onboard equipment (OE) power supply buses.

EFFECT: expanded functionality of the HCM, increased stability of maintaining temperatures at various points of the OE seat on the temperature-stabilized platform, and increased reliability of the OE.

1 cl, 1 dwg