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1. (WO2018197907) ENVIRONMENT CONTROL IN ELECTRONIC APPARATUS

Pub. No.:    WO/2018/197907    International Application No.:    PCT/GB2018/051149
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue May 01 01:59:59 CEST 2018
IPC: H05B 1/02
G06F 1/16
G09F 9/00
H04N 5/64
H05K 7/20
Applicants: AMSCREEN GROUP LIMITED
Inventors: WHITEHEAD, Stephen
SHIRES, Jonathan
GREENWOOD, Gary
FRANCIS, Peter
Title: ENVIRONMENT CONTROL IN ELECTRONIC APPARATUS
Abstract:
In an electronic apparatus, a housing (120) has within it a power supply unit (200,318,319) that receives external electrical power and supplies electrical power to components of the apparatus, under the control of a power controller (201). Also within the housing are a heater (202); temperature and humidity sensors (300-311); and an electronic processor (315) that receives power from the power supply unit (200,318,319) and carries out functions of the electronic apparatus. Upon startup of the electronic apparatus, the power controller (201) is arranged to receive data from the temperature and humidity sensors (300-311); process the received temperature and humidity data to indicate a current dew point within the housing (120); and compare the current dew point with a current location temperature at a location within the housing (120). If the current location temperature is at or below the current dew point, the heater (202) is activated to raise the temperature within the housing. Only if the current location temperature is above the current dew point, is electrical power supplied from the power supply unit (200, 318, 319) to the electronic processor (315).