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 to a specifiable input current IE;
at least one electrical consumer;
an energy storage device supplying the electrical consumer with electrical power and a current draw IV;
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 the input current IE that flows through the input protection circuit is not exceeded,wherein a sum of the charging current IL fed to the charging circuit and the current draw IV of the electrical consumer corresponds to the input current IE of the input protection circuit.
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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.
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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 to a specifiable input current IE; at least one electrical consumer; an energy storage device supplying the electrical consumer with electrical power and a current draw IV; 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 the input current IE that flows through the input protection circuit is not exceeded, wherein a sum of the charging current IL fed to the charging circuit and the current draw IV of the electrical consumer corresponds to the input current IE of the input protection circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification