Ver.Techno Frontier Test Procedure for the “M-DrAGON” LV8806QAGEVK Evaluation Kit CURRENT PROBE AMPLIFIER Oscilloscope PROBE INPUT OUTPUT CHANNEL 1 2 3 4 FAN Power supply A V - IC1: LV8806QA + VCC=5V PC Figure 1. Setup for motor control Board version code IC2: Level shifter With the Daughter Board plugged into USB Without the Daughter Board Figure 2. Bottom view of the Evaluation Board 2/26/2014 -1- www.onsemi.com Ver.Techno Frontier Table1: Reference Equipment Equipment DC Power supply Oscilloscope BLDC Motor Current probe LV8829LFQAGEVB Evaluation Board MOTOR DRIVER DAUGHTER BOARD USB Type A to Type mini-B cable PC with M-DrAGON* GUI installed Specifications 5V 4 channel 3 phase sensorless FAN motor 5V-0.4A 32bit: Windows XP(SP3) / 7 /8 64bit: Windows 7 *) It means “Motor- Driver And GUI produced by ON semiconductor”. Test Procedure ・ Connect the test setup as shown Figure 1. ・ It is important to follow the order shown for starting the system: 1. Plug a USB cable into the Daughter Board. 2. Start up the GUI for LV8805. 3. Apply input voltage to the terminal “VCCTEST”. 4. Apply drive signals with GUI (See below). 2/26/2014 Always remove Vcc before unplugging the daughter board. -2- www.onsemi.com Ver.Techno Frontier GUI Operation If the daughter board is unplugged, the message is “USB Disconnected…”. Figure 3. The first window of M-DrAGON When you double click the icon the above window appears. 1. Select “BLDC” in Motor Type. 2. Select “LV8806” in Driver type. 3. Push the “OK” button. 4. The following windows should appear: Tachometer Controller Graph Figure 4. GUI windows for LV8806 2/26/2014 -3- www.onsemi.com Ver.Techno Frontier Controller window ① ② ③ ④ ⑤ Figure 5. Controller window ①PWMIN Duty：It can control Duty0 %～ 100% of the PWM input signal. Please input directly in the box or drug & slide the control bar. ②S/S: Chip Enable：It change the start and stop of the motor. "Start" indicate when the fan stop. And this bottan push then the fan strat. "Stop" indicate when the fan start. And this bottan push then the fan stop. ③F/R：It change the fowerd rotation and reverse rotation of the motor. ④Test morde Window：It open the test mode window. The operation procedure of Test mode window explain at the following ⑤Polling Timer：It is pushed then the change of the number of the fan rotation is displayed in real time in the graph. 2/26/2014 -4- www.onsemi.com Ver.Techno Frontier Tachometer window ③ ① ② ③ Figure 6. The tachometer window ①Current rpm：This displays fan RPM. The calculation formula is given below. 2 rpm FG _ friquency 60 N *N=② Number of motor poles ②Number of motor poles： Set up the number of poles of the fan. ・ Choose "N/A" when you don't know the nunber of poles of the fan. ③Maximum Speed： Adjust the renge of the graph axis and tachometer when you input directly in the box or drag & slide the control bar. Graph window Figure 7. The graph window This graph shows X-axis:time and vertical-axis:rotations speed. 2/26/2014 -5- www.onsemi.com Ver.Techno Frontier ・Test mode window ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑫ ⑪ ⑬ Each parameter setup ① Trial Number：The test number of trials ② Timeout：This is the time allocated for startup. ③ Off time：This is the minimal time the fan will remain off prior to beginning a test. The relation between ② and ③ is shown below. 1 test ③Off Time 1 test ②Timeout ③Off Time ②Timeout The case of a lack of start up 1 test 1 test ③Off Time ③Off Time elapsed time ②Timeout The case of normal start up Test start elapsed time Start up time *It change ② to ③ immediately When the fan starting up is detected to within a time. ④,⑤Target number-of-rotations setup (Tachometer window: Setup ④ when you chose xx poles and setup ⑤ when you chose N/A at the ② Number of motor poles.) ④ Target RPM:. When the motor reaches the Target RPM the startup mode is complete. ⑤ Target FG ： Similar to target RPM but accounts for the number of poles. Generally 70% of maximum FG. ⑥S/SType：Choose “Low-Level: Rotate active”. ⑥ Test Start：Start a test. ⑦ Abort Test：Abort a test. ⑧ Save Result：This saves the result of the test as a data file. ⑨ Copy Clipboard：This copies the result of the test as a text file on the clip board. Test result is displayed at ⑪,⑬. ⑩ Test times and start up time are displayed. ⑬The histogram(y-axis:times/ x-axis:start up time) is displayed. ⑫Slide the control bar to adjust the step of x-axis in the histogram 2/26/2014 -6- www.onsemi.com Ver.Techno Frontier Table2: Example 1 INPUT VCC=5V (Power Supply) PWMIN duty= 100% F/R= forward OUTPUT Motor rotational speed = approx. 4000rpm Waveforms during the motor rotation (5mSec/div) Zoom in the red box area in the left fig (20uSec/div) Figure 8. The image of waveforms for example 1 1ch VFG 5V/div 2ch VOUT1 24V/div 4ch IOUT1 500mA/div 3ch VPWM 5V/div Table3: Example 2 INPUT VCC=5V (Power Supply) PWMIN duty= 50% F/R= forward OUTPUT Motor rotational speed =approx. 2700rpm Waveforms during the motor rotation (2mSec/div) Zoom in the red box area in the left fig (20uSec/div) Figure 9. The image of waveforms example 2 1ch VFG 5V/div 2ch VOUT1 24V/div 4ch IOUT1 500mA/div 3ch VPWM 5V/div 2/26/2014 -7- www.onsemi.com Ver.Techno Frontier C3 1000p VCC TGND2 GND R8 1 RF 2 UO 14 15 13 R8 DUMMY OSC 16 TGND1 IC1 FR 12 PWM 11 FG 10 RD 9 R5 1kΩ FR A1-17 (FR1) R5 1kΩ PWM R3 100Ω FG R1 100Ω RD LV8806QA VO WO FIL WO COMIN 4 VO COM 3 COM VCC To Motor Connector UO 5 6 7 8 A1-10 (PWM1) B-19 (FG) B-7 (FLAG3) R4 10k VCC R2 10k C2 0.01u VCC TEST MC14504 2pin (Aout) VCC C1 4.7uF D1 Daughter Board 2SJ665 Daughter Board A2-15 B-3 1pin (ST-Bar) (Gate) (3.3V) VDD 2 1 VCC 3 Aout Cout 4 Ain Cin 5 Bout 6 Bin 7 VSS C10 8 MC14504BDT Din Dout Ein Eout MODE Fin Fout VDD IC2 9 10 11 12 13 14 15 16 C9 VCC TEST 2/26/2014 -8- www.onsemi.com Daughter Board 0.5 Ver.Techno Frontier Cautions ・ This system is intended for an initial evaluation of LV8806QA. We will not guarantee measured values as full evaluation and validation must be performed on your system independently. ・ Never hold the motor with the lead wire or shaft. The motor should be affixed to a stand prior to operation. ・ Attach all motor leads prior to application of power. Safety ・ Do not touch the rotating part when the motor is powered. Doing so may result in injury. ・ Do not touch conductive parts such as connectors when the motor is powered. Doing so may result in electric shocks. 2/26/2014 -9- www.onsemi.com