Electronic direct current conversion device, printed circuit board (PCB) and electronic direct current conversion method

A DC conversion and electronic technology, which is applied in the direction of printed circuit, output power conversion device, and conversion equipment without intermediate conversion to AC, etc., can solve the problem of no direct output DC voltage, etc., and achieve simple and reliable circuit structure and convenient overall installation , easy to achieve effect

Inactive Publication Date: 2012-10-17
SANY HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, there is a problem that the current mainstream construction machinery controllers do not directly output 0-5V DC voltage, they can only output pulse-width modulation (Pulse-Width Modulation, PWM) signal

Method used

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  • Electronic direct current conversion device, printed circuit board (PCB) and electronic direct current conversion method
  • Electronic direct current conversion device, printed circuit board (PCB) and electronic direct current conversion method
  • Electronic direct current conversion device, printed circuit board (PCB) and electronic direct current conversion method

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Embodiment Construction

[0023] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] Embodiment of electronic DC conversion device

[0025] refer to figure 1 , the electronic DC conversion device of this embodiment is used to supply DC voltage to the electronic controller of the construction machinery electric control engine, including a low-pass filter circuit 20, the input end of the low-pass filter circuit 20 and the PWM signal output of the construction machinery controller 10 The terminal 101 is connected, and the output terminal of the low-pass filter circuit 20 is connected with the electronic controller 30 of the electric motor.

[0026] The electronic DC conversion device of this embodiment takes into account the characteristics of the engine control input int...

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PUM

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Abstract

The invention discloses an electronic direct current conversion device, a printed circuit board (PCB) and an electronic direct current conversion method. The electronic direct current conversion device is used for supplying direct current voltage to an electronic controller of an engineering machinery electronic control engine and comprises a low-pass filter circuit, wherein the low-pass filter circuit comprises a filter resistor and a filter capacitor, which are connected with each other; one end of the filter resistor is connected with a pulse width modulation (PWM) signal output end of an engineering machinery controller; and an output end of the filter capacitor is connected with the electronic controller. By the invention, a PWM signal which is output by the engineering machinery controller can be converted into the direct current voltage, and the rotating speed of the engine is regulated in real time.

Description

technical field [0001] The invention relates to the field of engineering machinery, and in particular to an electronic direct current conversion device, a printed circuit board (Printed Circuit Board, PCB) circuit board and an electronic direct current conversion method. Background technique [0002] Most of the engines used in existing construction machinery are electronically controlled engines. The high-pressure oil pump of this type of engine has its own linear motor inside, and there is no need for an external throttle adjustment mechanism. In order to realize the real-time adjustment of the engine speed, it is necessary to adjust the input voltage of 0-5V of the electric control unit (ECU) of the electric engine. [0003] However, there is a problem that the current mainstream construction machinery controllers do not directly output 0-5V DC voltage, they can only output pulse-width modulation (Pulse-Width Modulation, PWM) signal. [0004] Therefore, it is necessary t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/06H02M1/12H05K1/00
Inventor 尹满义王泽锋项涛
Owner SANY HEAVY MACHINERY
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