Texas Instruments DRV8308 Скачать руководство пользователя | Manualshive

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Содержание DRV8308

Страница 1: ...trol system Table of Contents 1 The DRV8308EVM and motor 2 1 1 Overview 3 1 2 External lab equipment 3 1 3 Configuration jumpers 4 2 The GUI 7 2 1 Installation 7 2 2 Quick guide to spin with open loop...

Страница 2: ...SLVUA41E 2 1 The DRV8308EVM and motor TelcoMotion DT4260 24 055 04H TI...

Страница 3: ...NSE VM FETs Phase inputs BLDC Motor FG OUT testpoint Power supply Frequency to voltage Flutter meter Oscilloscope VM input Figure 1 DRV8308EVM system diagram 1 2 External lab equipment 1 Power supply...

Страница 4: ...n generally seen to produce worse results 3 Frequency to voltage converter and oscilloscope It is useful to convert the FGOUT frequency to be represented by an analog voltage and send the signal to a...

Страница 5: ...and removing JP2 this circuit is available for Hall elements VM 2k 180 _ HPWR HGND Hall Elements Figure 3 Circuit when setting Hall power to current Here s an example to calculate current if VM 24V an...

Страница 6: ...pins should be biased with a middle voltage so that a single ended swing on the pin is detected like a differential voltage Jumper JP3 controls U7 an 8 line FET switch and it decides when to connect...

Страница 7: ...older DRV8308EVM_GUIv1 2 into directory guicomposer webapps depending on where you installed GUI Composer during Step 1 If you installed GUI Composer to the default directory the folder is C ti guicom...

Страница 8: ...oaded and no symbols set the PWM Duty Cycle to 40 and click ENABLE The motor should spin Next To change from counter clockwise to clockwise click DIR To change speed use the duty cycle knob To apply s...

Страница 9: ...MOD120 to 3970 Select CLK from MSP430 Step 3 Click ENABLE to spin at exactly 1500 RPM Connecting a scope probe to FGOUT allows you to observe the Hall U frequency If you load the motor with your finge...

Страница 10: ...d RPM AUTOGAIN When enabled the DRV8308 scales LOOPGAIN with RPM because more gain is needed for more speed This is a valuable feature and should generally be left enabled Then ScaledGain LOOPGAIN fCL...

Страница 11: ...ror process The following steps are a general guide The GUI loads with default register values that attempt to have reasonable filter settings Step 1 Use the first tab to run in PWM mode You might nee...

Страница 12: ...This is the minimum gain your system needs to reach the commanded RPM In future trials changing the filters to improve flutter and dynamic performance will also change total gain and the calculator sh...

Страница 13: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Страница 14: ...essful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna imped...

Страница 15: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Страница 16: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Страница 17: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Страница 18: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments DRV8308EVM...

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