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Electric spark voltage-stabilizing power supply

A technology of power supply and electric spark, applied in the direction of electrical components, adjusting electric variables, instruments, etc., can solve the problem that the power supply cannot meet the electricity demand of electric spark, affect the stability of electric spark power supply, power switch voltage and current surge, etc. problem, achieve the effect of ensuring stable switching and supply, simple structure, and suppressing the influence of pulse surge

Active Publication Date: 2021-11-26
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] EDM is a non-contact special processing technology that is widely used because it can process difficult-to-cut materials and parts with complex shapes. The most important part of it is the pulse power supply. The quality of the pulse power supply directly affects the formation of EDM. Various process indicators, such as processing quality accuracy, processing speed, etc., in the traditional EDM power supply, the pulse current is usually controlled by the power switch to control the EDM, and the current is limited by connecting the current limiting resistor in series. It leads to the consumption of power supply, and when the distance between the EDM electrode and the power supply changes, it is easy to cause the power supply to fail to meet the electricity demand of the EDM, reducing the accuracy of the processing quality, and in EDM, most of the power There are inductors and capacitors in the switch control series, and the power switch is prone to voltage and current surges during operation, which affects the stability of the spark power supply.

Method used

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  • Electric spark voltage-stabilizing power supply
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  • Electric spark voltage-stabilizing power supply

Examples

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Effect test

Embodiment 2

[0029] Embodiment 2: On the basis of Embodiment 1, please refer to figure 2 , in a specific embodiment of the electric spark stabilized power supply according to the present invention, the power feedback switching control module 1 includes a first power supply V1, a second power supply V2, a first resistor R1, and a fourth resistor R4 , the fifth resistor R5, the first diode D1, the first switch K1, the second relay K2, the third relay K3, the second switch K2-1, the third switch K2-2, the fourth switch K2-3, the Fifth switch K2-4, sixth switch K3-1 and seventh switch K3-2;

[0030] Specifically, the anode of the first power supply V1 is connected to the fourth switch K2-3, the first end of the first resistor R1, the anode of the first diode D1, the first switch K1, the sixth switch K3-1, the fifth Resistor R5 and second relay K2, the second end of the first resistor R1 is connected to the other end of the fourth switch K2-3 and connected to the positive pole of the second p...

Embodiment 3

[0038] Embodiment 3: On the basis of Embodiment 1, please refer to figure 2 , image 3 , Figure 4 with Figure 5 , in a specific embodiment of the electric spark stabilized power supply described in the present invention, the signal sampling and conditioning module 3 includes a current signal sampling unit 301, a current signal conditioning unit 302, a first voltage signal sampling unit 303, a second A voltage signal sampling unit 304 and a second voltage signal conditioning unit 305;

[0039] Specifically, the current signal sampling unit 301 is configured to sample the current signal output by the power switch control module 2;

[0040] A current signal conditioning unit 302, configured to perform voltage conversion, voltage follow and voltage bias processing on the sampled current signal;

[0041] The first voltage signal sampling unit 303 is configured to sample the power supply in the power supply feedback switching control module 1;

[0042] The second voltage sig...

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Abstract

The invention discloses an electric spark voltage-stabilizing power supply, which relates to the technical field of voltage stabilization control, and comprises a power supply feedback switching control module, a power switch control module, a signal sampling and conditioning module, a main control module, a PWM (Pulse Width Modulation) driving module, a pulse chopping module and a communication module, the power supply feedback switching control module is used for providing a power supply, the power switch control module is used for generating pulse current, the signal sampling and conditioning module is used for sampling and processing voltage and current signals, the main control module is used for receiving signals and outputting control signals and driving signals, and the PWM driving module is used for outputting pulses. The pulse chopping module absorbs surge, and the communication module is used for communication. The electric spark voltage-stabilizing power supply effectively inhibits pulse surge, does not need a high-voltage breakdown loop, realizes electric spark power supply on-off and automatic switching of a power supply feedback point, adopts the operational amplifier circuit and the voltage and current detection circuit, improves the detection precision of voltage and current, and further improves the voltage stabilization output precision.

Description

technical field [0001] The invention relates to the technical field of voltage stabilization control, in particular to an electric spark voltage stabilization power supply. Background technique [0002] EDM is a non-contact special processing technology that is widely used because it can process difficult-to-cut materials and parts with complex shapes. The most important part of it is the pulse power supply. The quality of the pulse power supply directly affects the formation of EDM. Various process indicators, such as processing quality accuracy, processing speed, etc., in the traditional EDM power supply, the pulse current is usually controlled by the power switch to control the EDM, and the current is limited by connecting the current limiting resistor in series. It leads to the consumption of power supply, and when the distance between the EDM electrode and the power supply changes, it is easy to cause the power supply to fail to meet the electricity demand of the EDM, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M9/02H02M3/158H02M1/08H02M1/32
CPCH02M11/00H02M3/158H02M1/08H02M1/32Y02B70/10
Inventor 赵莅龙刘永红
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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