发明授权
US09210739B2 PTC heating device without electronic power control 有权
PTC加热装置无电子电源控制

PTC heating device without electronic power control
摘要:
Foil-based PTC heaters are self-regulating, i.e. do not need any electronic control unit (ECU) to limit the maximum heating current. In order to establish different heating power levels the present invention proposes to choose different PTC ratio/onset characteristics. In addition, the print design of the PTC ink can be adjusted accordingly.
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