A load multi-state combined voltage regulation power supply circuit and power supply method thereof
A technology of power supply circuit and power supply method, applied in the direction of conversion equipment that can be converted to DC without intermediate conversion, can solve problems such as voltage regulation failure, achieve the effects of reducing components, improving power supply quality, and saving costs
Active Publication Date: 2018-06-19
SICHUAN INJET ELECTRIC CO LTD
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Problems solved by technology
However, when the two are connected in parallel, the reactance is used for current sharing and voltage regulation. Due to the existence of the reactor, it is determined that when the system is working in the first state (S1), the load of the first branch and the load of the second branch must be Equal, if the load difference between the two branches is too large, the voltage regulation will fail
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[0020] A detailed description will be given below in conjunction with the accompanying drawings.
[0021] The load multi-state combined voltage regulation power supply circuit of the present invention includes a transformer, a switch element, at least two loads and at least N+1 and at most 2N-1 voltage regulation components, wherein the transformer has N taps, and N≥2.
[0022] combine figure 1 The load multi-state combined voltage regulation power supply circuit of the present invention is shown; wherein, the transformer has 5 taps, that is, N=5, the 6 loads are respectively R1, R2, R3, R4, R5 and R6, and the 8 voltage regulation components are respectively are D1-D8, and the voltage regulating components D1-D8 and the switching element D0 are all thyristors.
[0023] The loads R1, R2, R3, R4, R5 and R6 are all connected in series, and the resistance of each load is negatively correlated with its working time.
[0024] The foremost load R1 is connected to the voltage regul...
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The invention discloses a load multi-state combined voltage regulation power supply circuit, which includes a transformer, a switch element, at least two loads and at least N+1 and at most 2N-1 voltage regulation components, wherein the transformer has N Taps, and N≥2; the loads are all connected in series and the resistance of each load is negatively correlated with its working time. The load at the top is connected to the N taps of the transformer through N voltage regulating components, and the load at the end is connected to the N taps of the transformer. The loads of the voltage regulating components are respectively connected to the rest of the voltage regulating components, and are connected to the taps of the transformer one by one through the voltage regulating components in the order of the tap ratio from small to large; one end of the switching element is connected to the zero potential end of the transformer, and the other end is connected to Between any two adjacent loads, it is used to switch the reference potential of the load. The invention adopts the combination of different working states of the voltage regulating components to switch the connection state of the load end, reduces components, simplifies the circuit, saves cost, and improves the power supply quality.
Description
technical field [0001] The invention relates to a power supply circuit, in particular to a load multi-state combined voltage regulation power supply circuit, which is mainly used in the industrial production process to supply power to changing loads. Background technique [0002] In the photovoltaic, electronics, and microelectronics industries, polysilicon is the main raw material. Polysilicon is a high-purity silicon that is purified through a series of physical and chemical reactions using metallic silicon as the raw material. Because the improved Siemens process is compatible with the production of electronic-grade and solar-grade polysilicon, it is currently the preferred process for polysilicon production due to its mature technology and suitability for industrial production. This production process requires high-power power supply heating and constant temperature control of polysilicon rods. [0003] In the whole production process, polysilicon is equivalent to a loa...
Claims
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IPC IPC(8): H02M5/12H02M5/25
Inventor 谭兵
Owner SICHUAN INJET ELECTRIC CO LTD