US 12,336,084 B2
Humidity-adjusted power supply
Hendrikus Adrianus Anthonius Verheijen, Helden (NL)
Assigned to Xerox Corporation, Norwalk, CT (US)
Filed by Xerox Corporation, Norwalk, CT (US)
Filed on Dec. 23, 2021, as Appl. No. 17/560,531.
Prior Publication US 2023/0209699 A1, Jun. 29, 2023
Int. Cl. H05K 1/02 (2006.01)
CPC H05K 1/0212 (2013.01) [H05K 1/0213 (2013.01); H05K 2201/10151 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a relatively higher-voltage circuit adapted to provide output voltage to a load;
a relatively lower-voltage circuit adjacent the relatively higher-voltage circuit, wherein the relatively lower-voltage circuit outputs a heater control signal; and
a heater connected to receive the heater control signal from the relatively lower-voltage circuit,
wherein the relatively higher-voltage circuit and the relatively lower-voltage circuit are positioned, relative to each other, to experience same environmental conditions,
wherein the relatively higher-voltage circuit includes a transformer providing the output voltage,
wherein the relatively lower-voltage circuit comprises a humidity sensor and an amplifier connected to the humidity sensor,
wherein the amplifier is connected to receive:
a first input from the humidity sensor; and
a second input comprising a portion of the output voltage from the transformer that is a proportional voltage that is lower than, and proportional to, the output voltage,
wherein the relatively lower-voltage circuit further comprises a signal converter connected to the amplifier and the heater, and
wherein the signal converter supplies the heater control signal to the heater based on output from the amplifier.