An unbalanced parallel voltage regulation power supply circuit for loads with dynamically changing resistance values
A dynamic change, power supply circuit technology, applied in inorganic chemistry, silicon compounds, chemical instruments and methods, etc., can solve problems such as load imbalance
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Embodiment 1
[0022] The present embodiment provides an unbalanced parallel voltage regulating power supply circuit for a load with a dynamically changing resistance value, which includes two independent voltage regulators and a transformer connected to the input terminals of the two voltage regulators to provide the input voltage for them, The two voltage regulators are respectively connected to taps of different voltages of the transformer.
[0023] Wherein, the voltage regulator is an AC power control device composed of thyristors or IGBTs. This is a kind of control angle that can be adjusted as required (for example, constant output current or voltage or power or conduction angle) by adjusting the control angle of the thyristor or IGBT. Etc.) AC power supply device that changes the waveform of the input power source, which is the prior art and will not be repeated here.
[0024] The output terminals of the two voltage regulators are each independently connected to a load branch, and one of t...
Embodiment 2
[0027] The group of loads in Example 1 has 2 load branches and a total of 4 pairs of silicon rods. The characteristics of this example are as follows: figure 2 By connecting three groups of power supply circuits as described in Embodiment 1 with three independent coils on the secondary side of the transformer, power supply to 12 pairs of silicon rods can be realized.
[0028] See figure 2 , The transformer is a three-phase transformer, and its side connected to the voltage regulator is the secondary side of the transformer, and the secondary side of the transformer has at least three independent coils without a common point (similar to a transformer with a Y-shaped connection, this The transformer used in the embodiment does not have a common neutral point) and is evenly distributed on the three phases A, B, and C. Each coil of the transformer has two voltage taps that can output different levels of voltage. Among them, a voltage regulator with a smaller equivalent load impedan...
Embodiment 3
[0035] The difference between this embodiment and embodiment 1 and embodiment 2 is that the transformer 3 described in it is replaced with an independent transformer, such as image 3 , That is, each voltage regulator in the first and second embodiments is connected to a transformer,
[0036] See image 3 , Where one side connected to the voltage regulator is the secondary side of the transformer, and the other side is the primary side. The two coils on the primary side of the transformer are equivalently connected in parallel, and the power input is provided by the same grid, and the two independent The secondary coil on the secondary side of the transformer is connected to the voltage regulator to supply power to the load branch. At the same time, in the secondary side loop, the secondary side coils of the two transformers have a common connection point 310, and this common connection point 310 is a zero potential end for the two transformer coils.
[0037] At the same time, th...
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