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Drive current CoolMOS

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Idrv = Qg(total) / T(on)

The faster the turn on required, the higher is the drive current

XMC 4500 Ethernet failure

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Hi Jesus, it seems to work. I will still need to how long it can continue. Many thanks.

PFC explaination

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What is PFC? I had a rough look on google and wikipedia, but i am not sure about the understanding.

PWM_CCU8 module stops when debugging

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Hi,

I was not able to reproduce your issue.

Could you share your project?
Could you check the value of GCTRL.SUSCFG bitfield when you stop your application? It should read 0.

Regards,
Jesus

Which are the losses in a MOSFET when used in PFC?

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When the PFC is in working Continuous Conduction Mode:
- Conduction losses
- Turn on and off (Switching) losses
- Gate losses
- Output capacitance (i.e. Co(er)) losses

When the PFC is in Critical Conduction Mode:
- Conduction losses
- Turn off losses
- Gate losses
- Output capacitance (i.e. Co(er)) losses.

Changing the gate turn on and off resistor to reduce the switching losses

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Not only by changing the gate resistors is the efficiency affected, but also the drain to source peak voltage during turn off as well as the EMI behavior of the converter. This is a very iterative procedure. The gate resistor can be change as much as the efficiency is good enough, the drain-to-source voltage spike during turn off do not exceeds 80% of the MOSFET breakdown voltage during normal operation (according to IPC-9592) and the EMI performance does not exceed the Class A or B (according to the specified application case)* limits of conducted emissions.

UART port on IRCable V2 cannot access IRMCK099 main board

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Dear infineon engineers,
I bought IRMCK099 Eva board and IRCable V2 Debug Tools.
It works perfectly except UART port.
I download .bin file to RAM through JTAG port on MCEDesigner, and I can access registers to read and write values.
However, when I switch the connection to UART port, MCEDesigner shows "COMx inactive, all access is denied".
I do plug PC USB cable to "USB-UART", and the UART output port is connected to the main board. it works on JTAG, but not UART.
Since I cannot access MCEDesigner, I try to use MCEProgrammer.
I use MCEProgrammer to download .bin file to SRAM and I do see some signals transmit to the main board Rx pin.
However, the main board Tx pin never reply back to my computer, so communication fails.

Should I configure GPIO on the main board or is there any settings I skip?
I am looking forward to hearing from you. Appreciate.

Best regards

Pin Allocator

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Hi,

Could you send us the log file located in your workspace at .metadata/.log?

Regards,
Jesus

XMC rotary encoder

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I would be interested in a POSIF App for DAVE 4 as well. As far as I know this app does ont exist for DAVE 4 yet. The POSEQ001 App you are refering to Flo13 is only avilable for DAVE 3.
For the moment we need to implement it with low lever drivers. See this doc for help
http://www.infineon.com/dgdl/Infineo...4ed938a6a7311f

Green and Yellow

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Hi all,

As a bit on an aside, would anyone know the thinking, behind the following difference, with the XMC4800 Relax board? Does some convention, apply? I couldn't find anything concrete. We've followed suit, for our project board.

For the Ethernet port, the green LED is PHY pin driven, and the yellow LED is XMC pin driven, ie software control. But for the EtherCAT In and Out ports, the opposite is true. Details, below.

- With the Ethernet port, the green LED is driven by the Micrel KSZ8081RNA PHY LED0 output (default on for link, blink for activity, otherwise off).The PHY LED1 output (default 10/100 speed indication), is not-connected. The yellow LED is driven by XMC pin 2.10. The DAVE example project for Modbus TCP, doesn't drive the pin. For our project, I've added toggle after each packet send, LED off on comms timeout.

- With the EtherCAT In and Out port (lets call them EI and EO, respectively), the yellow LED is driven by the Broadcom BCM5241XA1KMLG PHY LED1 output, seemingly on for link activity, otherwise off. (The LED state goes also to XMC pins 6.3 for EI, 3.12 for EO, for EtherCAT Slave Code (ESC) monitoring use). The PHY LED2 output goes to 3V3 via 2K2. The green LED is driven by XMC pin 1.15 for EI, 3.4 for EO. The ESC blinks, for activity. The XMC4300 Relax board is the same, except latter pins 1.12 and 0.11.

Best regards,

David

cheapest controller for automotive can

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Hey, it's been a few weeks. Did you find a good cheap controller?

Team working on DAVE project

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Hey Christoph,

did you try Import-->Team-->SVN Project...?

Best regards
Andi

LPT wiggler help

Question about XMC-4400 HTTP web server.

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Hello XMC users.

I've tried to make a web server to display uchar type values.

I'm using both XMC-4400 but don't have enough examples about web server.

So I tried to http web server example to understand how the server works.

But the problem is that the example in library didn't work; sys_time_out() method is not supported.

I don't know why the infineon example was not work.

I want to know how to construct a web server using XMC-4400 and how to send and display data on web server.

Does anybody have the solution about the problem?

Please let me know your ideas or example about this.

Thanks in advance.

on-board wiggler 93c46 eeprom

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I got Easy Kit EK-XC88x and accidently erase on-board wiggler 93c46 eeprom by Mprog utility.
Can anybody upload wiggler 93c46 eeprom content for Mprog utility?

Program control not coming out of DMA ISR

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Hi,
I am sorry..i forgot to mention the controlled details..I am using XMC4500 RelaxLite kit..

Thanks in advance..

Package details

Failure rate of BSR202N

Help:How can I connnect the 20pins DAP miniwiggler V3 to 16 pins OCDSL1 target

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Hi Jackson,
Can I use the miniWiggler JDS circuit for debugging of TC1724? this circuit are in “TriBoard TC1724 Hardware Manual” document(page 8-5).I don’t know how to connect output pins of this circuit to my TC1724?
Thank you.

IRMCK099 on a new design

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Hello All

I am looking to use the IRMCK099 in a new design, but I have the following questions:

1. I assume that the IRMCK099 will run BLDC motors just as well as the PMSM's? I have found no documentation stating that the IRMCK099 is happy with BLDC however they do state that thye target the drone market - which use BLDC.
2. Why is the Max value for the Max speed stated as 16384RPM? Surely the max speed is proportional to the number of motor poles of the motor used and restricted to perhaps the electrical cycle frequency? If so what is the maximum electrical frequency?
3. Can you please confirm the ASIC incorporates a PI speed control loop, PI current control loop as both the Speed/Current (combined) PI control loop?
4. Using a single shunt will save costs and free up the Opamp for another circuit, however what are the drawbacks to only using one shunt? I was under the impression that two shunt resistors were required for FOC algorithms (as the third phase is calculated)

Thanks
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