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Devices for generating DC load current

A DC load and current technology, applied in the direction of DC network circuit devices, circuit devices, output power conversion devices, etc.

Active Publication Date: 2018-04-17
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0038] The technical result that neither of the above-characterized prior art designs can achieve is to provide a load DC current of constant value where the load can vary over a wide range
[0039] The reason for the inability to achieve the above technical results is that, in prior art devices for generating DC load currents, the problems associated with the extension of the range of load resistance values ​​have not been given due attention, because the load ranges that were thought to have been achieved in the past values ​​easily meet the requirements of the current

Method used

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  • Devices for generating DC load current
  • Devices for generating DC load current
  • Devices for generating DC load current

Examples

Experimental program
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Effect test

Embodiment Construction

[0058] According to the first design among the proposed designs ( Figure 1a and 1b ) The device for producing a constant load current includes:

[0059] - a DC voltage source 1 generated by any known method (for example, using a full-wave rectification circuit with a filter);

[0060] - a DC voltage-to-pulse voltage converter (DCPVC) 2 comprising, for example: a constant-frequency rectangular pulse generator 3 (connected via one of its terminals 4 (which is the first input of the DCPVC 2 ) to the positive side of the DC voltage source 1 terminal 5 and via its other terminal 6 to the negative terminal 7 of the DC voltage source 1), a reference voltage source 8 (via its one terminal 9 to the positive terminal 5 of the DC voltage source 1 and via its other terminal 10 to Negative terminal 7 of DC voltage source 1), controllable switch 11 (connected via its input 12 to output 13 of constant frequency rectangular pulse generator 3), operational amplifier 14 (connected via its ou...

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PUM

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Abstract

A variant of the proposed solution is intended to generate a direct current flowing through a circuit for supplying power to a variable load (51). The modification of the proposed technical solution includes a DC voltage source (1), a DC voltage-pulse voltage transformer (2), a first galvanic decoupling node (24), a pulse voltage-DC voltage transformer (28), a load (51), A DC voltage regulator (53), a control circuit (72) and a second galvanic decoupling node (78). Corresponding connections of the load (51), the DC voltage regulator (53) and the control circuit (72) allow: stabilizing the DC current flowing through the circuit for supplying power to the load (51); stabilizing the DC voltage at the DC voltage regulator (53) and produces a constant DC value that flows through a variable load circuit across a wide range of loads, wherein the polarity of the voltage across the load relative to the DC voltage source (1) can vary according to the embodiment of the device.

Description

technical field [0001] This engineering design relates to electrical engineering and can be used in power supply systems providing a constant direct current flowing in a load circuit where the load varies over a wide range. Background technique [0002] Similar designs are known, such as a linear voltage regulator with continuous pulse regulation (SU1229742, published May 7, 1986), which comprises the following set of essential features: [0003] - DC voltage source; [0004] - a DC voltage-to-pulse voltage converter (DCPVC), connected through its input to the output of a DC voltage source; [0005] - Pulse voltage-to-DC voltage converter (PDCVC) whose input is connected to the output of DCPVC (DLC-filter); [0006] - a linear voltage regulator, connected through its input to the output of PDCVC; [0007] - first voltage divider, connected in parallel to PDCVC; [0008] - a second voltage divider, connected between the output of the linear regulator and the negative term...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/46H05B44/00
CPCG05F1/46H05B45/44H05B45/382H02M3/33523Y02B70/10H02J1/00
Inventor Y·I·罗曼诺夫S·V·马莱特斯基
Owner CLOSED UP JOINT STOCK COMPANY DRIVE