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Recent content by acinfo32

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    Flash SPI memory VHDL model (Winbond W25Q64BVZEIG)

    Dear all, Is there a VHDL model, which I can use in my testbench, to simualte a Winbond W25Q64BVZEIG SPI flash memory? Thanks in advance
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    fraction and integer part of sfixed signals

    Dear All, In our calculations we have a sfilxed value: SIGNAL Bin : sfixed(9 DOWNTO -9); -- ( = 2.7 ) Now I want to have the fractional part as integer (=7) in a signal and the "integer" part (=2) in another signal. How can I do this? Is there an example? I'm not succeeding even when...
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    200kHz HF Transformer needed

    transformer yourself Thanks again it is very helpful. Yes it was exactly the same device and the same load (transducer measured outside the circuit then connected back and measures its voltage). Could it be that the 470pF capacitor (2kV) parallel at the transducer is needed to get the...
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    200kHz HF Transformer needed

    parameter hf transformer Tank you for your reactions. The analyzer was not able to measure more frequencies. I didn't acquire the data of the original transformer because. - I could not get it out of the circuit without a high risk of damaging the print. - Measuring the coil in the...
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    200kHz HF Transformer needed

    design ultrasonic transformers mosfet Dear all, Finally I managed to find someone with an impedance analyzer (LCR meter). In the attachment you can find my measurements. The pulses at the transducer are 1000V top-top and 200kHz. Can you give some ideas and formulas seen these specs. I have...
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    200kHz HF Transformer needed

    transformer frequency definemax power Probably I'm a little bit misleading by the 380W max power. This is according the specs the voltage was not given. I have traced the original sonar and it is just as I thought and as I had seen in another project. The transformer in the picture above is...
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    200kHz HF Transformer needed

    design of hf switching transformers pdf Dear All, Thank you all for your reactions. Because I had no internet the last days hereby my reaction a little bit late. My design is indeed for a sonar transducer. Of this transducer I know for sure that is works only on 200KHz. At this frequency it...
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    200kHz HF Transformer needed

    resonance transformer Dear Frank, Thank you very much for your help. Here a supplement. These transformers are probably hard to buy. The device is a piezo ceramic transducer. I don't know if it is resistive but I know that it gives a power of about 300W (round 500V no need for exact...
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    200kHz HF Transformer needed

    hf transformer design Dear all, I'm searching for a special transformer with the following specifications: I have a block pulse of 200kHz and 12Vpp (transformer input). The transformer output is connected to a transducer of 1200ohm and must have pulses of about 500Vpp. Does someone know a...
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    Working of 200 kHz skimmer transducer for sonar

    Dear all, I have a sonar with a 200 kHz transducer of Lowrance named the skimmer (Lowrance Skimmer Transducer HS-WSBL) . Now I want to convert the skimmer signal to RS232 and back but I don't know how the transducer works. Does someone have the specification of this (type of) transducers or...
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    Need the datasheet of J6812 transistor

    j6812+pdf It is probably this one: https://www.fairchildsemi.com/ds/FJ/FJAF6812.pdf#search=%22FJAF6812%22 Try to meassure it as a normal transistor. A diode between base and emitor and a diode between base and collector. Good luck Acinfo32
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    TMS320C6713 (16Mb) Starter Kit Schematic and Guides?

    Dear All, Thank you both very much for your reactions. I was looking at the www.ti.com site but I couldn’t find it. I had not looked at the spectrumdigital.com site. Now I have found what I was looking for. Thank you. Acinfo64
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    TMS320C6713 (16Mb) Starter Kit Schematic and Guides?

    Dear All, I have here a TMS320C6713 (16Mb) Starters kit. The only problem is that the kit is delivered without the Technical Reference and User guides. Now I have a few questions. 1 – Can this guide be downloaded for internet of ordered separately? Here I mean the original Technical Reference...
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    Need the datasheet of J6812 transistor

    transistor j6812 Hi R@ng3r, I ones needed such a Transistor. At that time I figured out that it is not the j6812. Probably it is this one. J6812=FJAF6812 from Fairchild. NPN Triple Diffused Planar Silicon Transistor Absolute Maximum Ratings TC=25°C unless otherwise noted * Pulse Test...
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    This is a working RS232.... ICD2 !!!!

    mc41010 Dear Regnum The voltages are +/- 8V. (Maybe with an 1u i can get it some higher) The polarity of C12 is indeed wrong but also the voltage at the - of C10. This should not be GND but VPIC. I have solved these problems and now the firmware can be updated. With the F877 and the updated...
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