1. A adaptive dual-slope frequency controller for adjusting power conversion, comprising:
a storage capacitor to chargedischarge;
a first charging current source coupled to the storage capacitor via a first switch;
a first discharging current source coupled to the storage capacitor via a second switch;
a second charging current source coupled to the storage capacitor via a third switch;
a second discharging source coupled to the storage capacitor via a fourth switch;
at least one conversion circuit to receive an error voltage and output a corresponding conversion signal to any of the chargingdischarging current sources to adjust the chargedischarge current extracted by the current source; and
a control circuit to receive a capacitor voltage, a high voltage reference, and a low voltage reference and output a control signal and an output pulse;
wherein the control signal controls the chargedischarge current on the first charging current source, the first discharging current source, the second charging current source, and the second discharging current source to control the chargedischarge current of the storage capacitor, thereby controlling the period of the capacitor voltage and thus the frequency of a gate pulse.
2. The adaptive dual-slope frequency controller for adjusting power conversion of claim 1, wherein the switches use the voltage of a switch current to output a reset signal to the corresponding switch for switching.
3. The adaptive dual-slope frequency controller for adjusting power conversion of claim 1 further comprising:
a comparator, which receives the capacitor voltage, the high reference voltage, and the low reference voltage and outputs a first control signal;
a flip-flop, which receives the first control signal and, through a negative-edge trigger, outputs a second control signal;
a first inverter, which receives the first control signal and outputs a first inverted control signal;
a second inverter, which receives the second control signal and outputs a second inverted control signal; and
a pulse wave generator, which receives the second control signal and outputs the output wave.
4. The adaptive dual-slope frequency controller for adjusting power conversion of claim 1, wherein the conversion circuit is an adder.
5. The adaptive dual-slope frequency controller for adjusting power conversion of claim 1, wherein the conversion circuit is a comparator.
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 device for moulding plastic preforms into plastic containers, comprising:
at least one blow station having a first mould part and a second mould part movable relative to one another, said first mould part and said second mould part surrounding a cavity within which the plastic preforms may be expanded into plastic containers;
a first cantilever disposed on the first mould part;
a second cantilever disposed on the second mould part;
a first hinge lever hingedly connected to a first cantilever;
a second hinge lever hingedly connected to the second cantilever, the first cantilever and the second cantilever being arranged to be pivotable with regard to at least one geometrical pivot axis, said first and said second cantilever being coupled to an actuating device which causes a movement of the first cantilever and of the second cantilever for moving the first and second mould parts,
wherein the blow station is mounted on a transport by means of a carrier, said carrier extending through a geometrical plane which is delimited by the cantilevers and the hinge levers andor the geometrical arrangement of the cantilevers or the hinge levers is arranged to be asymmetrical with regard to a geometrical centre line of the blow station.
2. The device as claimed in claim 1, wherein the first cantilever and the second cantilever have different lengths.
3. The device as claimed in claim 2, wherein the transport is a carrier which is rotatable about a rotary axis.
4. The device as claimed in claim 1, wherein the first and second cantilevers and the first and second hinge levers are arranged in such a way that the first and second mould parts move towards each other as the first and second hinge levers move away from each other.
5. The device as claimed in claim 1, wherein the first and second hinge levers are pivotable in relation to a common pivot axis.
6. The device as claimed in claim 1, wherein the actuating element has a pivotable actuating arm hinged onto said first and second hinge levers.
7. The device as claimed in claim 1, wherein the first cantilever is pivotable in relation to the first hinge lever with regard to a first hinge axis and the second cantilever is pivotable in relation to the second hinge lever with regard to a second hinge axis.
8. The device as claimed in claim 7, wherein a geometrical quadrangle, which is formed by the two hinge axes (A1, A2), the pivot axis (S), and an axis (X) with regard to which the first and second hinge levers are jointly pivotable, is at least periodically asymmetrical with regard to the geometrical centre line of the blow station.
9. The device as claimed in claim 8, wherein the axis (X), with regard to which the first and second hinge levers may be jointly pivoted, is movable along a circular path.
10. The device as claimed in claim 8, wherein the distances between the first hinge axis (A1) and the geometrical pivot axis (S) as well as between the second hinge axis (A2) and the geometric pivot axis (S) are different from each other.
11. The device as claimed in claim 1, wherein the geometrical pivot axis (S) is stationary in relation to the carrier.
12. The device as claimed in claim 1, further comprising a cam for actuating the actuating device.