12V DC Motor Control with BTN8982TA for one uni-directional DC brushed motor

Open online SPICE simulator circuit link: motor_brushed_12V_half-bridge_BTN8982TA.tsc

DC Motor Control with BTN8982TA (Half-Bridge)

{1. click here to set circuit parameters}
{2. click on "Run" to calculate components}
{3. click on "OK" and Simulate Transient }

{Supply voltage [V]}
VS:= 12 {use 8 ... 18}

{DC Motor parameters}
motor_J:=4.7E-7 {moment of inertia [kgm2] }
motor_k:=8.5m {motor constant [Nm/A] }
motor_D:=0 {ideal friction coefficient}
motor_R:=3.25 {motor resistance [Ohm] }
motor_L:=5m {motor inductance [H] }

{DO NOT Change! max. allowed speed in [rpm] }
max_speed:=VS/motor_k*60/2/pi
max_speed=[13.4814k]

speed:=8000 {ideal free running speed [rpm] }
{angular velocity w [rad/s] = speed*2*pi/60}
w:=speed*2*pi/60
w=[837.758]

{switching frequency [Hz] }
fs:= 1000 {use 100 ... 30000}

{Ambiente temperature [Celsius] }
Tamb:=50 {use 0 ... 120}

{===DO NOT CHANGE BELOW========}
Veff:=w*motor_k
Duty:=Veff/VS
Duty=[593.4119m]
T:=1/fs
T_ON:= Duty*T {on time}
T_OFF:=T-T_ON {off time}

ControlT2:=T_ON
ControlT4:=T_OFF

The BTN8982TA motor control device with half-bridge topology is one
of the high current motor control chips. The circuit demonstrate an
example circuit to drive one uni-directional DC motors (half bridge
configuration). The implemented integrated BTN8982TA NovalithIC™
half bridges can be controlled by a PWM via the IN Pin.

The DC motor parameters can be adjusted in the green text box on the
left side to simulate your individual motor control case.