DC motor 130-size (6 V, 11 500 rpm)
Brushed DC motor: armature resistance and inductance, back-EMF proportional to speed, torque proportional to current, shaft with inertia and friction. Defaults from the 130-size 6 V motor (11 500 rpm and 70 mA without load, 800 mA stall at 6 V). The load torque can be changed while the simulation runs; the shaft and its speed are shown in the schematic. Polarity: + positive turns forward.
Key data
- Category
- Modules
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- Pololu #1117 (130-size brushed DC motor)
- Reference prefix
- M
- Pins
- 2
- Land pattern
- JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical
Simulation model
A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.
- Model
- dc_motor
- Supply pins
- + / -
Pins 2
| Pin | Name | Use |
|---|---|---|
| + | +Passive pin | Motor terminal: positive voltage turns it forward |
| - | −Passive pin | Motor terminal: from a driver output or GND |
Parameters 6
loadliveBrakes the shaft in addition to the friction (stall torque at 6 V ≈ 3.3 mN·m)
R6 V / 0.8 A stall current
Lnot published: assumption
ke(6 V − 70 mA · 7.5 Ω) / 11 500 rpm
tfKe · 70 mA no-load current
Jnot published: assumption (1 g·cm²)
PCB
JST_XH_B2B-XH-A_1x02_P2.50mm_Verticalmotor off-board on a 2-pin JST XH connector (+, −)