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Power module output voltage adjusting method and device

An output voltage and power module technology, which is applied in the field of output voltage regulation of power modules, can solve the problems of limiting the use range of power modules, inability to meet, etc., and achieves the effects of good regulation effect, low cost and widening application range.

Pending Publication Date: 2019-11-22
SHENZHEN YOUHUA COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the power module cannot adjust the output voltage, it will limit the scope of use of the power module, and it will not be able to meet people's needs for components that can dynamically output voltage

Method used

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  • Power module output voltage adjusting method and device
  • Power module output voltage adjusting method and device
  • Power module output voltage adjusting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment first provides a method for adjusting the output voltage of a power supply module, such as figure 2 As shown, the power module is a direct current DC / DC constant voltage source with a voltage output terminal V OADJ , Used to output a constant voltage, when in use, at the voltage output terminal V OADJ A first resistor R1 is connected in series for output to supply power to the subsequent circuits or electronic components.

[0035] The adjustment method of this embodiment mainly includes the following steps:

[0036] S1: Configure a DA converter, the DA converter is connected to the voltage output terminal through a second resistor;

[0037] S2: Configure a controller, connect to the control terminal of the DA converter, and control the DA converter to output a variable voltage.

[0038] In this embodiment, AD5300 can be used as the DA converter. The DA converter is mainly composed of digital registers, analog electronic switches, summing operational amplifiers...

Embodiment 2

[0064] Reference image 3 As shown, this embodiment also provides an output voltage adjustment device for a power supply module, the power supply module having a voltage output terminal V OADJ , The voltage output terminal V OADJ Connected to the first resistor R1, the adjusting device includes:

[0065] DA converter, connected to the voltage output terminal V through a second resistor R2 OADJ ;with

[0066] The controller is connected to the control terminal of the DA converter through a serial bus, and controls the DA converter to output a variable voltage.

[0067] In addition, it also includes a feedback circuit, the controller is connected to the feedback circuit, and the output voltage of the DA converter is corrected in real time through the feedback circuit.

[0068] Preferably, the controller is an onboard CPU.

[0069] It also includes a memory, which is mounted on the CPU and stores a mapping table. The mapping table includes the chip model and the corresponding operating ...

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PUM

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Abstract

The invention relates to a power module output voltage adjusting method and device. The power module has a voltage output terminal, the voltage output terminal is connected to a first resistor, and the adjusting device includes a DA converter connected to the voltage output terminal through a second resistor and a controller connected to the control terminal of the DA converter and controlling theDA converter to output a variable voltage. The structure is simple and reliable, the adjusting effects are good, the needed hardware cost is low, the production cost of the equipment can be reduced,and the application range of the power module is widened.

Description

Technical field [0001] The invention relates to the technical field of power supplies, and in particular to a method and device for adjusting the output voltage of a power supply module. Background technique [0002] The power module is a constant current source or constant voltage source, used to supply power to the circuit modules, chips or electronic components in the equipment, and is generally designed and manufactured by the manufacturer into a finished product for sale. [0003] Such as figure 1 As shown, the traditional DC / DC power module is used to convert the input voltage into a fixed DC voltage output. The user can only adjust the output voltage by connecting the corresponding resistors in series. Once the fixed resistance resistors R1, V OADJ The output voltage is constant. In practical applications, some devices need to dynamically adjust the output voltage, and when supplying power to the circuit device, the voltage required by each module, each circuit, and each ch...

Claims

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Application Information

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IPC IPC(8): G05F1/46
CPCG05F1/46
Inventor 张志坚
Owner SHENZHEN YOUHUA COMM TECH
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