Secondary power supply for telematics terminal
First Claim
1. A secondary power supply for a telematics terminal, comprising:
- a power control unit for controlling a power supply based on a power control signal of the telematics terminal and/or a start-up key signal coupled from the outside;
a telematics control unit which is operated by power supplied from a secondary power supply unit under the control of the power control unit and controls each of components inside the telematics terminal;
the secondary power supply unit for supplying the power to the telematics control unit; and
a rectifying unit for rectifying power from a main power supply unit one more time and protecting the components from a reverse voltage by opening the connection of the main power supply unit and the secondary power supply unit when a voltage level of the secondary power supply unit is higher than that of the main power supply unit.
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Accused Products
Abstract
The present invention provides a secondary power supply for the telematics terminal. A secondary power supply for a telematics terminal including: a power control unit for controlling a power supply based on a power control signal of the telematics terminal and/or a start-up key signal; a telematics control unit which is operated by power supplied from a secondary power supply unit under the control of the power control unit and controls each of components inside the telematics terminal; the secondary power supply unit for supplying the power to the telematics control unit; and a rectifying unit for rectifying power from a main power supply unit one more time and protecting the components from a reverse voltage by opening the connection of the main power supply unit and the secondary power supply unit when a voltage level of the secondary power supply unit is higher than that of the main power supply unit.
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Citations
4 Claims
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1. A secondary power supply for a telematics terminal, comprising:
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a power control unit for controlling a power supply based on a power control signal of the telematics terminal and/or a start-up key signal coupled from the outside;
a telematics control unit which is operated by power supplied from a secondary power supply unit under the control of the power control unit and controls each of components inside the telematics terminal;
the secondary power supply unit for supplying the power to the telematics control unit; and
a rectifying unit for rectifying power from a main power supply unit one more time and protecting the components from a reverse voltage by opening the connection of the main power supply unit and the secondary power supply unit when a voltage level of the secondary power supply unit is higher than that of the main power supply unit. - View Dependent Claims (2, 3, 4)
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Specification