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Method and circuit for limiting output power of impulsive discharge

A technology of output power and discharge circuit, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of reduced reliability, poor accuracy, damaged devices, etc.

Active Publication Date: 2014-12-31
SHENZHEN VMAX NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For example, in the current pulse discharge circuit, in order to prevent the overheating of the discharge circuit from reducing the reliability or even damaging the device, the output power needs to be limited
[0003] However, in the existing digitally controlled discharge circuit, it is difficult to realize the dynamic power limit and the accuracy is poor.

Method used

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  • Method and circuit for limiting output power of impulsive discharge
  • Method and circuit for limiting output power of impulsive discharge
  • Method and circuit for limiting output power of impulsive discharge

Examples

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specific Embodiment approach

[0023] See image 3 , Figure 4 and Figure 5 , a specific embodiment of a method for limiting the output power of a pulse discharge, the method comprising:

[0024] Step S110: Dynamically calculate the instant M value;

[0025] like figure 1 As shown, the digital control circuit 50 obtains the discharge voltage value U through the voltage detection circuit 40, and the discharge pulse width Tp detected by the discharge pulse width detection circuit 60, by the formula M=U 2 Tp operation obtains instant M value (instantaneous discharge coefficient); Here and the operation in follow-up steps, as those skilled in the art can know, it can adopt the mode of software to realize, also can adopt the mode of hardware to realize;

[0026] Specifically, as Figure 5 As shown, step S110 includes:

[0027] Step S111, the voltage detection circuit 40 samples the discharge voltage;

[0028] Step S112, the discharge pulse width detection circuit 60 samples to obtain the discharge pulse ...

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Abstract

The invention provides a circuit and a method for limiting the output power of impulsive discharge. The circuit comprises an energy storage device, a discharge circuit, a load, a voltage detection circuit, a digital control circuit and a discharge pulse width detection circuit, wherein the digital control circuit is used for controlling the discharge circuit according to a voltage value detected by the discharge circuit and a discharge pulse width detected by the discharge pulse width detection circuit; and the discharge circuit is used for performing impulsive discharge on the load. Since a voltage sampling circuit and the discharge pulse width detection circuit are arranged, so that the current discharge interval is obtained through multiply operation only by utilizing the digital control circuit, when the discharge frequency is overhigh, discharge is prohibited, so that the electricity frequency is reduced, the output power of the discharge circuit is limited, and component damage caused by discharge overheat can be avoided.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a pulse discharge device or pulse discharge circuit and method. Background technique [0002] Existing electronic equipment is becoming more and more integrated, and the space between components in the electronic equipment is also getting smaller and smaller. Therefore, it is particularly important to reduce the heat generation of electronic components. For example, in the current pulse discharge circuit, in order to prevent the overheating of the discharge circuit from reducing the reliability or even damaging the device, the output power needs to be limited. [0003] However, in the existing digitally controlled discharge circuit, it is difficult to implement dynamic power limiting and the accuracy is poor. Contents of the invention [0004] The object of the present invention is to provide a method and device for limiting the output power of a pulse discharge de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 万仁春刘钧吴文江
Owner SHENZHEN VMAX NEW ENERGY CO LTD
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