Part # Application Notes Motor Control ST7MC1K2 ST7MC1K4 ST7MC2M9 ST7MC2N6 ST7MC2R6 ST7MC2R7 ST7MC2S4 ST7MC2S6 ST7MC2S7 8-Bit Microcont datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: PFC for ST7MC starter kit


Part Details:

AN1953 Application note PFC for ST7MC starter kit Introduction The aim of this Application Note is to give an example of how to use the ST7MC microcontroller toimplement the Power Factor Correction (PFC) inside a motor control application. The ST7MCmicrocontroller is provided with a Motor Control Peripheral which has been developed to implement motorcontrol function for Induction motors and Permanent Magnet Synchronous motors. The motor controlperipheral leaves the microcontroller resources free to perform the power factor correction. The power factor correction technique utilized is called "transition mode". The hardware used to realizethe system is the ST7MC Starter Kit plus an additional external power board called "Add On". In this application note, theoretical information about the PFC control method is given, in addition to anexplanation of the software routine able to manage the PFC stage and the calculation of the Add Oncomponents. The reader can find extra information about the motor control related routines the application noteAN1904. AN1953 Rev 2 1/20 http://www.st.com 20 PFC for ST7MC Starter Kit Contents 1 Theory about the PFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Starter kit approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1 Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.2 PFC software description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1 Power stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1.1 Power section design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7 References and related materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 PFC for ST7MC Starter Kit 1 Theory about the PFC 1 Theory about the PFC This application note focuses on the management by a microcontroller of the boost stage to obtain a power factor corrector (PFC) working in transition mode. Of course to do this job the microcontroller should have a timer with a special feature. A block diagram of the application is shown in Figure 1. Figure 1. Block diagram


Please click the following link to download the datasheet:

Application Notes Motor Control ST7MC1K2 ST7MC1K4 ST7MC2M9 ST7MC2N6 ST7MC2R6 ST7MC2R7 ST7MC2S4 ST7MC2S6 ST7MC2S7 8-Bit Microcont.pdf Datasheet