Product
DSP AD5430-18(Automotive triple-phase PWM control board)
Features
- Controls can be user-defined using by the Simulink model.
- Accepts resolver output signals directly.
- Maximum 20 kHz model cycle (model-dependent - cannot be guaranteed by this specification)
- Triangle wave used for carrier signal.
- Dead band circuit included.
- Carrier frequency can be changed during operation.
- Two types of synchronous clock are provided, timer and angle. Switchable during operation.
- PWM output and A/D input can be synchronized with the synchronous clock.
- User settable delay time (angle) for sampling.
Interface
- Resolver input
- Analog input
- Interlock input
- PWM output
- Synchronous clock signal output
Resolver input
| Item | Specification | |
|---|---|---|
| R/D converter | Tamagawa Seiki (AU6802 N1 resolver/digital conversion) | |
| Conversion method | Tracking system (negative feedback control system) | |
| Input form | Differential | |
| Input channel | Resolver signal (Sin / Cos) | |
| Input voltage range | ±5V | |
| Transformer ratio | 0.286 or 0.5 (Not changeable) | |
| Output impedance | 10 Ω or less (Use a resolver with input impedance 100 Ω or higher.) | |
| Output excitation signal | 10 kHz / 20 kHz 20 Vp-p [7Vrms] Always input in the resolver.External power source should be used. |
|
| Discontinuity / Sensor abnormality detection | Yes | |
| Over-input protection | None | |
| Angular resolution | 12bit | 10bit |
| Accuracy | ±4LSB | ±2LSB |
| Settling time | 2.5ms (typical) | 1ms (typical) |
| Maximum angular speed (electric angle) | 60,000 rpm | 240,000 rpm |
| Maximum angular acceleration | 64,000 rad / s2 | 256,000 rad / s2 |
| Responsivity | ±0.4 deg. max at 10,000 rpm | ±0.2 deg. max at 10,000 rpm |
- Note: Check your resolver specifications. Transformer ratio, output impedance, and output excitation signal all depend on the resolver.
Analog input
| Item | Specification |
|---|---|
| Input channels | 4 |
| Input form | Differential |
| Differential input voltage range | ±5 V |
| Input-voltage-to-ground range | ±12 V |
| Resolution | 16bit (succesive approximation) |
| Sampling frequency | Max. 40kHz |
| Conversion speed | Max. 3 µSec |
| Differential input impedance | 1 MΩ or higher |
| Input-to-ground impedance | Undetermined |
| Over-input protection | ±70V(voltage to ground) |
| Temperature drift | ±0.05% / deg., 0 deg. to 50 deg. |
| Input binding | DC coupled |
| DC offset accuracy | ±0.1% of FS (25 deg.) |
| DC linearity | ±0.1 of reading + 0.1% of range |
| DC accuracy | ±0.1% of FS (25 deg.) |
| Noise | ±0.1% of FS (25 deg.) |
| Frequency flatness | 10Hz to 2kHz, ±1% or less |
| High frequency distortion | -60dB or less (10Hz to 2kHz) |
| Crosstalk | ±0.1% or less (10Hz to 2kHz) |
| Phase between channels | ±0.1 deg. or less (10Hz to 2kHz) |
Interlock input
| Number of input signals | 1 |
|---|---|
| Input form | Current drive input (sink type) with photocoupler isolation |
| Over-input protection | +30V |
| Response speed | 10 msec or higher (minimum detected as an input) |
| Interlock input method | To-ground switch assumed |
- (Watch-dog feature on the platform)
PWM output
| Item | Specification |
|---|---|
| Control target | Automotive triple-phase PWM brushless DC motor |
| Control axis number / signal output | 6ch (UH, VH, WH, UL, VL, WL) |
| Output voltage | 0 to 5 V |
| Driver | Differential driver implemented |
| Carrier wave | Triangular wave |
| Carrier frequency | Max. 20kHz |
| Duty ratio | 0 to 100% |
| Time resolution | 25nSec (1/40MHz) or higher |
| Synchronization mode | Synchronous / Asynchronous |
| Multiplicator | 1-10 multiplication, not to exceed “by one” (carrier frequency 20 kHz) |
| Protection circuit | None (Use RS-422B standard IF box) |
| Response speed | 300 nSec or faster (90%, cable length 3 m or shorter) -> calculated at 100 pF/m |
| Output capacity load | 300pFmax |
| Output signal | Power On: High impedance output Interlock activated: Duty 0% output Model closed: High impedance output |
| Others | Sampling is synchronous with the carrier signal. Either top or bottom or both top and bottom can be specified with carrier wave. This hardware generates a PWM waveform. |
Synchronous clock signal output
| Item | Specification |
|---|---|
| Output channels | A/D input sampling clock PWM output sampling clock |
| Output form | Single end |
| Output voltage | 0 to 5V |
| Maximum output current | Source current: +5 mA Sink current: -5 mA |
| Protection circuit | None |
| Response speed | 300 nSec or faster (90%, cable length 3 m or shorter), calculated at 100 pF/m |
| Output capacity load limit | 300 pF |
| Output setting | Power On:High impedance output Interlock activated: Duty 0% Model closed: High impedance output |
Others
| Item | Specification |
|---|---|
| Isolation | Bus isolation (no isolation between channels) |
| I/O connector | Half-pitch 96 pin (male) JI+PCR-E96LMD (Honda Tsushin Kogyo) |
| Required number of slots | 1 |
| Power consumption | 3.5 W or less |