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An electric circuit for outputting multipath high precision driving signal

A drive signal, high-precision technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems of high-precision drive signal implementation scheme complexity, high cost, high price, etc., to reduce the complexity and cost of implementation Effect

Active Publication Date: 2015-07-08
VERTIV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, generally, digital controllers with more HRPWM output ports are more expensive than those with fewer HRPWM output ports.
Therefore, the complexity and cost of existing solutions for increasing high-precision driving signals are relatively high

Method used

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  • An electric circuit for outputting multipath high precision driving signal
  • An electric circuit for outputting multipath high precision driving signal
  • An electric circuit for outputting multipath high precision driving signal

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Embodiment Construction

[0037] Hereinafter, implementation of a circuit for outputting multiple high-precision driving signals according to an embodiment of the present invention will be described in detail in conjunction with the accompanying drawings.

[0038] figure 2 It is a schematic diagram of a circuit structure outputting multiple high-precision driving signals according to an embodiment of the present invention, as shown in figure 2 shown, including:

[0039] A digital controller 210, configured to output preset high-precision driving signals of N1 sources and N2 gate signals;

[0040] Wherein, N1 and N2 may or may not be equal, and adaptive adjustment may be made according to the actual application environment, which is not limited here.

[0041] The logic processing unit 220 is used to use the logic device and the strobe signal corresponding to the source high-precision driving signal to perform sub-beating and wave-selection processing on each source high-precision driving signal, and...

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PUM

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Abstract

The invention discloses an electric circuit for outputting multipath high precision driving signals. The electric circuit comprises a digital controller for outputting a preset N1 path source high precision driving signals and a N2 path gating signals; and a logic processing unit for utilizing a logic device and the gating signals corresponding to the source high precision driving signals to carry out a wave-selecting process to the source high precision driving signals on each path, and to obtain a preset N3 path purpose high precision driving signals, wherein N3>N1, and N1, N2,N3 are natural numbers. The complexity and the cost for realization of the circuit are minimized.

Description

technical field [0001] The invention relates to a driving signal output technology, in particular to a circuit for outputting multiple high-precision driving signals. Background technique [0002] In some circuits of switching power supplies, such as LLC circuits, in order to obtain better control effects, it is often hoped that the driving signal of the switching tube is high-precision (High Resolution) when performing digital control. The high-precision driving signal is generally a guide The precision of pass time or period reaches ps level, and the general error is less than 1ns driving signal. [0003] However, existing digital controllers, such as digital signal processors (DSP) or microcontrollers (MCU), generally have fewer high-precision pulse width modulation (HRPWM, High Resolution PWM) output ports, such as the Piccolo B series of TI Company DSP only has 7 HRPWM outputs at most, and the MC56F825x / MC56F824x series DSP of Freescale Company only has 6 HRPWM outputs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/088
Inventor 顾军向博李剑罗忠玉
Owner VERTIV CORP