UM0324 datasheet(52/105 Pages) STMICROELECTRONICS

No. de pieza	UM0324

Descripción Electrónicos	This user manual describes

PDF	105 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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52 / 105 page

Library functions

UM0324

52/105

4.3

Isolated current sensor reading and space vector PWM

generation: 75x_svpwm_ICS module

4.3.1

Overview

Two important tasks are performed in the 75x_svpwm_ICS module.

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Space vector pulse width modulation (SVPWM),

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Three-phase current reading when two isolated current sensors (ICS) are used.

In order to reconstruct the currents flowing through a three phase load with the required

accuracy using two ICS’, it is necessary to properly synchronize A/D conversions with the

generated PWM signals. This is why the two tasks are included in a single software module.

4.3.2

List of available functions and interrupt service routines

The following is a list of available functions as listed in the 75x_svpwm_ICS.h header file:

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SVPWM_IcsInit on page 53

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SVPWM_IcsCurrentReadingCalibration on page 53

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SVPWM_IcsGetPhaseCurrentValues on page 54

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SVPWM_IcsCalcDutyCycles on page 54

UM0324 Datasheet(PDF) 52 Page - STMicroelectronics