Charging of secondary cells (accumulators) with regulated input current
First Claim
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1. A field device, comprising:
- an input protection circuit limiting an input current load of the field device;
at least one electrical consumer;
an energy storage device supplying the electrical consumer with electrical power;
a charging circuit supplying the energy storage device with energy so that the energy storage device stores the supplied energy; and
a charging-current regulating device regulating a charging current IL fed to the charging circuit for charging the energy storage device so that a limiting value relating to an input current IE that flows through the input protection circuit is not exceeded.
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Abstract
Stated is a charging-current regulating device for charging an energy storage device for a field device, and for regulating a charging current for the energy storage device, wherein regulating the charging current for the energy storage device takes place in such a manner that a limiting value relating to an input current of the field device is not exceeded. Regulating the charging current may take place in such a manner that energy storage takes place as quickly as possible and without overloading an input protection circuit of the field device.
14 Citations
10 Claims
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1. A field device, comprising:
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an input protection circuit limiting an input current load of the field device; at least one electrical consumer; an energy storage device supplying the electrical consumer with electrical power; a charging circuit supplying the energy storage device with energy so that the energy storage device stores the supplied energy; and a charging-current regulating device regulating a charging current IL fed to the charging circuit for charging the energy storage device so that a limiting value relating to an input current IE that flows through the input protection circuit is not exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification