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System capable of providing PWM (Pulse Width Modulation) output with specified amplitude

A PWM signal and amplitude technology, applied in output power conversion devices, electrical components, pulse duration/width modulation and other directions, can solve problems such as not meeting national standards, achieve material cost savings, simple circuit structure design, and output stable effect

Pending Publication Date: 2021-08-17
NINGBO SANXING INTELLIGENT ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] According to the national standard "GB / T 18487.1---2015" of the People's Republic of China, the PWM signal used for measurement must be a PWM signal with an amplitude of ±12V, while the ordinary PWM signal amplitude is 0-12V, which does not meet the requirements of the national standard. standard

Method used

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  • System capable of providing PWM (Pulse Width Modulation) output with specified amplitude
  • System capable of providing PWM (Pulse Width Modulation) output with specified amplitude

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0020] Such as figure 1 As shown, the system of the present invention that can provide a PWM output with a specified amplitude includes an MCU module 1 for providing a PWM signal, a drive module 2 that is arranged at the output end of the MCU module 1 and operates according to the PWM signal, and a drive module 2 that is arranged on the drive module 2 The output terminal and the output module 3 that outputs the PWM output of the specified amplitude under the action of the drive module 2. Through this design, it can effectively guarantee...

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Abstract

The invention relates to a system capable of providing PWM (Pulse Width Modulation) output with specified amplitude. The system comprises an MCU (Microprogrammed Control Unit) module (1), a driving module (2) and an output module (3), wherein the MCU module (1) is used for providing a PWM signal; the driving module (2) is arranged at the output end of the MCU module (1) and acts according to the PWM signal, and the output module (3) is arranged at the output end of the driving module (2) and outputs the PWM output with the specified amplitude under the action of the driving module (2). The system is simple in circuit, low in cost and good in stability.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a system capable of providing a PWM output with a specified amplitude. Background technique [0002] The ability of a circuit to provide an output that meets the required amplitude in a specific scenario is an important indicator for assessing whether the circuit meets the standard. For example, in AC charging pile products, there is a working mode in which the vehicle control device confirms the maximum power supply current of the current power supply equipment by measuring the duty cycle of the PWM signal. [0003] According to the national standard "GB / T 18487.1---2015" of the People's Republic of China, the PWM signal used for measurement must be a PWM signal with an amplitude of ±12V, while the ordinary PWM signal amplitude is 0-12V, which does not meet the requirements of the national standard. standard. Contents of the invention [0004] In view of the above ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K7/08H02M1/08
CPCH02M1/08H03K7/08
Inventor 胡健张宇航陈利峰
Owner NINGBO SANXING INTELLIGENT ELECTRIC
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