1. An overcurrent protection circuit, comprising:
an output control device including a control terminal for controlling power between an input terminal and an output terminal of the overcurrent protection circuit;
a first comparator, connected to the control terminal of the output control device, for comparing a reference voltage with a voltage of the output terminal of the overcurrent protection circuit and outputting a comparison result;
first and second detection devices, each of which includes a control terminal that receives the comparison result, for detecting a proportional current value that is proportional to current flowing through the output control device;
a second comparator, connected to an output terminal of the first detection device, for comparing the proportional current value with a first reference current value provided by a first current source;
a first control device, connected to an output terminal of the second comparator, for controlling a voltage of the control terminal of the output control device;
a second current source, connected to an output terminal of the second detection device, for providing a second reference current value;
a third comparator for comparing a voltage of the output terminal of the second detection device with a voltage of an output terminal of the output control device; and
a second control device, connected to an output terminal of the third comparator, for controlling a voltage of the control terminal of the output control device.
2. The overcurrent protection circuit according to claim 1, wherein:
the first current source comprises current sources providing a first current value and a control current value that maintains constant mutual conductance;
the second current source comprises current sources providing a second current value and a third current value; and
the first current value is equalized with the second current value, and a maximum value of the control current value is equalized with the third current value.
3. The overcurrent protection circuit according to claim 2, further comprising:
a switch unit for cooperatively disconnecting the current source providing the control current value that maintains the mutual conductance and the current source providing the second current value.
4. The overcurrent protection circuit according to claim 1, wherein the reference voltage is variable.
5. A direct current power supply, comprising:
an overcurrent protection circuit having an input terminal and an output terminal, the protection circuit including,
an output control device including a control terminal for controlling power between the input and output terminals of the overcurrent protection circuit;
a first comparator, connected to the control terminal of the output control device, for comparing a reference voltage with a voltage of the output terminal of the overcurrent protection circuit and outputting a comparison result;
first and second detection devices, each of which includes a control terminal that receives the comparison result, for detecting a proportional current value that is proportional to current flowing through the output control device;
a second comparator, connected to an output terminal of the first detection device, for comparing the proportional current value with a first reference current value provided by a first current source;
a first control device, connected to an output terminal of the second comparator, for controlling a voltage of the control terminal of the output control device;
a second current source, connected to an output terminal of the second detection device, for providing a second reference current value;
a third comparator for comparing a voltage of the output terminal of the second detection device with a voltage of an output terminal of the output control device; and
a second control device, connected to an output terminal of the third comparator, for controlling a voltage of the control terminal of the output control device; and
a voltage supply connected to the input terminal of the overcurrent protection circuit.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A three-dimensional textile component structure adapted to absorb loads in defined directions during use, the textile component structure being comprised of high-tensile yarns formed in surrounding relation about a longitudinally extending core area, characterized by a plurality of yarn sheets (3, 4) comprised of parallel high-tensile yarns wound about the core area (1) in layers with one yarn sheet above the other and with the yarns in the yarn sheets (3, 4) oriented at differing angles relative to the longitudinal extent of the core area (1), and at least one other yarn sheet (2) comprised of parallel high-tensile yarns surrounding the core area and extending along the longitudinal extent of the core area (1), the yarns of the yarn sheet (2) being fixed relative to each other in said longitudinally extending disposition by a textile structure (5) made of an intersecting yarn system.
2. Three-dimensional textile component structure according to claim 1, characterised in that the wound angles of the yarn sheets (3, 4) are matched to defined main load directions in such a way that force components acting during loading substantially extend in the longitudinal direction of the core area.
3. Three-dimensional textile component structure according to claim 1, characterised in that the number of high-tensile yarns within the respective yarn sheets is different and matched to the level of the loads provided.
4. Three-dimensional textile component structure according to claim 1, characterised in that the yarn sheets (3, 4) are arranged in an angle range of 0\xb0 to virtually 90\xb0.
5. Three-dimensional textile component structure according to claim 4, characterised in that each yarn sheet is wound at an angle remaining constant.
6. Three-dimensional textile component structure according to claim 4, characterised in that in at least one yarn sheet (3, 4), the winding angle varies as a function of local load states of the component during its intended use.
7. Three-dimensional textile component structure according to claim 1, characterised in that the textile structure (5), which fixes the longitudinally extending yarn sheet (2), is formed from yarns which are of lower value and have lower tensile strength than the yarns of the sheets (2-4).
8. Three-dimensional textile component structure according to claim 4, characterised in that the yarns of the fixing textile structure (5) have a smaller cross section than the high-tensile yarns of the yarn sheets (2-4) and do not impair a substantially drawn form of the high-tensile yarns.
9. Three-dimensional textile component structure according to claim 1, characterised in that the fixing textile structure (5) is produced by braiding.
10. Three-dimensional textile component structure according to claim 1, characterised in that the fixing textile structure (5) is a knitted structure.
11. Three-dimensional textile component structure according to claim 9, characterised in that the yarns of the other yarn sheet (2) to be fixed are incorporated into the textile structure (5) as standing ends.
12. Three-dimensional textile component structure according to claim 1, characterised in that the yarn sheets are stabilised three-dimensionally by means of synthetic resin.
13. A method for producing a three-dimensional textile component structure adapted to absorb loads in defined directions during use, comprised by forming high-tensile yarns in surrounding relation about a longitudinally extending core area, characterised by winding a plurality of yarn sheets (3, 4) of parallel high-tensile yarns about the core area in layers with one yarn sheet above the other and with the yarns in the yarn sheets (3, 4) oriented at different angles relative to the longitudinal extent of the core area (1), forming at least one other yarn sheet (2) of parallel high-tensile yarns in surrounding relation to the core area with the yarns thereof extending along the longitudinal extent of the core area (1), and fixing the yarns of the other yarn sheet (2) relative to each other in said longitudinally extending disposition by a textile structure (5) made of an intersecting yarn system while the yarn sheets (3, 4) are wound.
14. Method according to claim 13, characterised in that the different winding angles of the yarn sheets (3, 4) are adjusted by adjusting a peripheral speed of a winding means guiding the yarn sheets (3, 4) in relation to a speed of positional change of a component core, which defines the core area, relative to the winding means.
15. Method according to claim 14, characterised in that intersecting yarns of the textile structure (5) are supplied at such a low yarn tension that they do not noticeably deflect the yarns of the yarn sheet (2) made of high-value material, which they fix, from their longitudinal direction.
16. Method according to claim 13, characterised in that the textile structure (5) fixes the longitudinally extending yarn layer (2) by braiding the intersecting yarn system.
17. Method according to claim 13, characterised in that the textile structure (5) fixes the longitudinally extending yarn layer (2) by knitting the intersecting yarn system.
18. Method according to claim 13, characterised in that the three-dimensional textile component structure is bound after production thereof by a synthetic resin and thereby fixed with respect to its shape.
19. Method according to claim 18, characterised in that the core area is defined by a pre-shaped core (1) and, after the fixing of the shape of the textile component structure, the preshaped core (1) is disposed of.
20. Method according to claim 19, characterised in that the core (1) is dissolved or shrunk and removed in this state from within the component structure.