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A power supply device with two outputs and its control method

A technology of power supply device and controller, which is applied in the field of power supply, can solve the problem of high cost of power supply device, and achieve the effect of keeping the real-time voltage V1 stable

Active Publication Date: 2019-07-19
东莞市东准电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cost of the power supply unit is high due to the need to use two converters to supply power to the device side and the control side respectively

Method used

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  • A power supply device with two outputs and its control method
  • A power supply device with two outputs and its control method
  • A power supply device with two outputs and its control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] See figure 1 , figure 1 This embodiment provides a structural diagram of a power supply device with two outputs. The power supply device includes: a converter 10, a transformer 20, an equipment rectification device 30, a control rectification device 40, a controller 60, a detection storage unit 80 and a driver 90.

[0065] The converter 10 is used to generate alternating current, and supplies power to the equipment rectifier 30 and the control rectifier 40 through the transformer 20 respectively.

[0066] The transformer 20 includes a primary winding, a first secondary winding and a second secondary winding. The output end of the converter 10 is electrically connected to the primary winding, the first secondary winding is electrically connected to the equipment rectifier 30, and the second secondary winding It is electrically connected to the control rectification device 40.

[0067] The equipment rectifying device 30 is electrically connected to the equipment terminal 50, ...

Embodiment 2

[0102] See Figure 5 , Figure 5 This embodiment provides a flow chart of a control method for a power supply device with two outputs.

[0103] The power supply device includes: a converter 10, a transformer 20, an equipment rectification device 30, a control rectification device 40, a controller 60, a detection storage unit 80 and a driver 90.

[0104] The converter 10 is used to generate alternating current, and supplies power to the equipment rectifier 30 and the control rectifier 40 through the transformer 20 respectively.

[0105] The transformer 20 includes a primary winding, a first secondary winding and a second secondary winding. The output end of the converter 10 is electrically connected to the primary winding, the first secondary winding is electrically connected to the equipment rectifier 30, and the second secondary winding It is electrically connected to the control rectification device 40.

[0106] The equipment rectifying device 30 is electrically connected to the equ...

Embodiment 3

[0140] See Image 6 Compared with the first and second embodiments, the power supply device provided in this embodiment has the real-time voltage V of the equipment terminal 50 2 Or real-time current I S , And the real-time voltage V of the control terminal 100 1 Connect to the controller 60 in parallel, and select the real-time voltage V of the device terminal 50 through the switch K1 and the switch K2. 2 Or real-time current I s , Or by the real-time voltage V of the control terminal 100 1 Enter the controller 60.

[0141] Specifically, when the PWM controller 70 sends a PWM signal to control the switch K1 to close, the device terminal 50 opens, and the PWM signal controls the switch K2 to close. When the PWM controller 70 sends a PWM signal to control the switch K1 to turn off, the device terminal 50 is turned off, and the PWM signal controls the switch K2 to turn off.

[0142] In order to explain the working principle of this embodiment more clearly, please refer to Figure 7 ....

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Abstract

The invention discloses a power supply device with two outputs and a control method thereof. The power supply device includes a converter, a transformer, an equipment rectification device, a control rectification device, a controller, a detection storage unit and a driver; when the equipment end is turned on, The controller according to the real-time voltage V of the device 2 and set voltage V set2 , or according to the real-time current I at the device end s and set current I set , control the driver to drive the converter to work in the closed-loop control state; at this time, the detection storage unit stores the voltage value V of the control terminal at this time 3 ; When the device end is closed, the controller will use the real-time voltage V of the control end 1 and set voltage V set , control the driver to drive the converter to work in the closed-loop control state, so that the real-time voltage V 1 equal to the voltage value V 3 ;Through the power supply device, in the other time except the initial time, the real-time voltage V of the control terminal 1 equal to the voltage value V 3 , which avoids the problem of voltage disturbance at the control terminal caused by switching back and forth between the on and off states of the device.

Description

Technical field [0001] The present invention relates to the technical field of power supplies, in particular to a power supply device with two outputs and a control method thereof. Background technique [0002] At present, in the field of power supply technology, when a converter is required to supply power to the device side and the control side at the same time, since the device side often switches back and forth between the on and off states, in order to make the device side work normally and keep the real-time voltage of the control side It is stable, therefore, two converters are usually used to supply power to the equipment end and the control end respectively, one converter supplies power to the equipment end, and the other converter supplies power to the control end. [0003] Since two converters are needed to supply power to the equipment side and the control side respectively, the cost of the power supply device is high. Therefore, designing a power supply device that in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00
CPCH02M1/00H02M1/0025
Inventor 杨东平
Owner 东莞市东准电子科技有限公司