Voltage transformer with clock pulse generator
AssigneeSTILL GmbH
InventorsFRANZ-JOSEF ARPING, WOLFGANG HEINRICH GROTHE, BERTHOLD HACKER
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Abstract
An industrial truck is provided with a direct current power supply and at least one electrical user (2), e.g., a lighting device located in a housing, wherein the power supply voltage of the power supply (3) is greater than the nominal voltage of the user (2). To connect the user (2) to the power supply, there is a voltage transformer (4) which is located inside the housing or in the immediate vicinity of the housing. The invention also relates to a voltage transformer which applies a power supply voltage to a user (2) in pulses, so that the power delivered to the user, as an average over time, does not exceed the nominal power of the user (2).
Claims18
A voltage transformer to connect an electrical user to a power supply voltage that is greater than a nominal voltage of the user, comprising:
- a power supply having a power supply voltage;
- a user connected to the power supply and having a nominal voltage;
- and
- a clock pulse generator located between the power supply and the user, the clock pulse generator configured to apply the power supply voltage to the user in pulses, so that the power delivered to the user, as an average over time, does not exceed the nominal voltage of the user.
An industrial truck comprising:
- a direct current power supply having a power supply voltage;
- at least one electrical lighting means located in a housing and having a nominal voltage, wherein the power supply voltage is greater than the nominal voltage of the lighting means;
- and
- a voltage transformer connecting the lighting means to the power supply, wherein the voltage transformer is located inside the housing or in the immediate vicinity of the housing.
A method for supplying power from a power supply having a power supply voltage to an electrical user having a nominal voltage, in which the power supply voltage is greater than the nominal voltage of the electrical user, comprising the step of:
- applying the power supply voltage to the user in pulses so that the power delivered to the user, as an average over time, does not exceed the nominal voltage of the user.
Dependencies are inferred from the claim text.