BERGES Naturns Italy
SYNAPTICON BLDC Motoren Robotik
STIHL Waiblingen BLDC Startmotor
MAGNA Powertrain: BLDC sensorless
INVENOX Garching CAN Interface
batterie management SW structur
10/2014 – 1/2016
BRUSA Schweiz SW BLDC
BLDC communication structur Renesas
9/2016 – 3/2017
AB Mikroelektronik Salzburg
Bootloader using LIN/UART Infineon
5/2017 – 6/2017
VALEO Paris La Verrier
ECF cooling fan from scratch
7/2017 – 11/2018
HANON Italy SW BLDC ECF
ECF cooling fan SW-sensorless
Microchip and NXP
12/2018 – 11/2020
Thomas Magnete, Herdorf
algorithm BLDC sensorless dsPIC33
11/2020 - 5/2021
HUSQVARNA Schweden
BLDC STM32, IPD, sHFI
battery-powered devices
2/2021 - 6/2025
HANON Campiglione
Valve control
Melexis-controller
06/2025 – 11/2025
on-site and remotely.
BLDC PMSM motor control
Reluctance motor control
SynchronReluctance motor control
Asynchron motor control
FOC - Encoder
FOC - Hall sensor
FOC - Resolver
FOC - sensorless
FOC, PID-Regler
O_B_S_E_R_V_E_R
ZeroCrossing - sensorless
Speed-constant for Ecf
HFI: HighFrequency-Injection
sHFI silent high frequency injection
PING or IPD startup angle detection
ORGLER ELECTRONIC
Tel 0039 3475916352
Email: Orgler electronics
Italy 39100 Bozen/Bolzano
C,Visual C++, Qt, Python
STM32,STSPIN
Microchip dsPIC33
NXP,S12ZV
Texas: MSP430
Elmos
Infineon Tricore
Melexis
CAN,
USB, TCP/IP
SCI,RS232,RS485,LIN
visualization: Visual C++ 2022
simulation: MATLAB, Simulink,Visual C++ 2022
link to my account at www.freelance.de
Ludwig Orgler
Fachingenieur Elektrotechnik
Embedded software - developer
freelancer
torque at standstill with sHFI
silent HFI uses phase modulation instead as audible amplitude modulation
The motor starts from standstill with the maximum permissible torque
and is fully controlled even at low speeds.
From a certain speed, the control switches to observer mode.
my own laboratory for remote work
IPD (initial position detection) followed from
silent HFI signal
the current shape of silent HFI
the first pulses for IPD
MOTOR - CONTROL
PWM - GENERATION:
sine lookup table
SVM space vector modulation
trigonometric calculation
deadtime insertion
inrush_current limiting
SENSORLESS ALGORITHMUS
Start with OPEN LOOP
Start with IPD (Initial Position Detection)
Initial run with HFI (High Frequency Injection)
Run with sHFI (Silent High Frequency Injection)
IPD -> OpenLoop -> FOC
IPD -> HFI or sHFI -> FOC
OpenLoop -> ZCD (Zero Crossing Detection)
PROTECTION
overvoltage
undervoltage
max phase current
max input current
max q-current
VDS Voltage Source Saturation
PWM - OUTPUT
sine
flat bottom
flat top
flat top-bottom
FOC with OBSERVER (integral)
FOC with OBSERVER (sliding)
ZCD Zero Crossing Detection
for low noise application
Field weakening
ADC measurements
current phase line shunt and Op-Amp
current source line shunt and Op-Amp
three shunts or single shunt (current reconstruction)
current power supply
phase voltage filtered
NTC PCB-board temperature
MATH FUNCTIONS:
clarke-conversion
park conversion
PI - regulator
anti windup
hysteresis
invers park
invers clarke
cartesian to polar
floating point
fixed point calculation
power regulator
power boost
ramp calculation
start bow, end bow
winding temperature estimation
inductance measurement
resistance measurement
stall detection
run monitor
Many modules are needed for a motor control system.
The interaction of the modules must run smoothly.
The timeline needs to be carefully planned.
No function or task may affect the priority of the
PWM-PERIOD.
Any irregularity will cause interference,
which will be immediately noticeable acoustically or
mechanically.
