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  1. Sunnysky

    Hep please - what resistor size.

    i would use a ZCS opto-triac instead of a Reed switch.
  2. Sunnysky

    What is something electrical engineers know that others don't?

    If you are creative, flexible and study hard, you will enjoy learning to solve great problems that demand an understanding of how things work, how to define what to expect then deliver what was expected at the right time, cost and performance. Education is just a tool but not the experience, so...
  3. Sunnysky

    What transter starts a kawasaki nijah what dose it look like

    https://duckduckgo.com/?q=kawasaki+starter+switch+electronic+ninja+schematic&t=newext&atb=v343-7&iar=images&iax=images&ia=images
  4. Sunnysky

    5V, 3A over-voltage circuit needed

    5V @ 3A is a trivial supply issue. But you have yet to define all the loads. It makes a difference if you have inductive or motor loads and datasheets are needed. LEDs are easy to drive. You are asking for a bandaid to a poor supply problem rather than fixing the supply requirements. Please...
  5. Sunnysky

    Powering projects from marine power circuit.

    It is better to drive heavy inductive loads from a battery with suitable switches and protection. This is because of the estimated 10x rated power surge accelerating the device. With CM chokes and shielded twisted pairs this will result in fewer EMI problems for everything else making it easy...
  6. Sunnysky

    Need this electronic components or equivalent Plz help

    Ask your best supplier to match this http://ycsemi.com/UploadSysFiles/files/20190519/10N80F.pdf
  7. Sunnysky

    Need this electronic components or equivalent Plz help

    https://www.digipart.com/part/10N80F
  8. Sunnysky

    SAW Sensor - Why is my circuit not oscillating?

    The C pad doesn't seem to work with the lack of gain >=1 at 0 deg. The power on oscillation decay time and phase shift from input to output ought to tell you the problem. https://www.researchgate.net/publication/257307958_Designing_an_EMC-Compliant_UHF_Oscillator/figures?lo=1
  9. Sunnysky

    SAW Sensor - Why is my circuit not oscillating?

    Try an attenuator pad in your oscillator feedback to determine the surplus gain that it has and will be needed to overcome the SAW s21 losses.
  10. Sunnysky

    Looking for Wi-Fi Modem recommendations

    I see that Breezeline uses the same Hitron modems that my ISP Rogers Canada uses, which are apparently the best. I get mine free but must return it or else be charged and I pay 45$c/mo (half price) for > 500 Mbps unlimited. The Wifi is not as strong as my older high power router so the high...
  11. Sunnysky

    Wifi woes

    I use a 1m USB cable to extend the dongle like an antenna to avoid or aim for a stronger signal of at least 3 bars or 54 Mbps on Wifi. If that is not possible then I use teamviewer to see the remote computer RSSI signal in dBm or WiFi Speed and tune the router antenna for best reception...
  12. Sunnysky

    Tricking Solar inverter

    A good grid-tied inverter or GTI may already have the feature you read was not available. There are several regulators and many protection features in a GTI that are required by each country and province beyond CE , UL etc. with an order of precedence. Both grid and PV source must sense the...
  13. Sunnysky

    Powering projects from marine power circuit.

    Common mode noise may become an issue for any analog sensors and feedback for servo control, so grounding, shielding and filtering and CMRR are of primary importance. Power supply specs are often defined by tolerance to supply, load, step load, ambient temperature and temperature rise. Once...
  14. Sunnysky

    24VDC LED on 24VAC power source. Amateur questions.

    What do you want to compromise with simplicity? max brightness, flicker? fully dimmable. Because you must learn how to follow directions and get a few more parts than diodes, capacitor and a pot will burnout as a dimmer with 200 mA.
  15. Sunnysky

    treadmill motor over volts

    If the 300V corresponded to a 25% increase in RPM that's expected, otherwise it was possible just a transient V=LdI/dt from a dry contact relay opening. From some fault condition Moderators note : removed colorcode for better readability
  16. Sunnysky

    Measuring Diodes in Cct.

    The schematic and PCB layout is avail here http://freeservicemanuals.info/en/servicemanuals/viewmanual/Sanyo/VTC5000/VTC5100/VTC5010/SCHEMATICONLY/ download PDF If possible do in-circuit test for voltages that differ greatly from the schematic ( or a known good unit) is the best method for...
  17. Sunnysky

    EMP attack!

    don't even seriously think about this scam https://www.empshield.com/bundles/
  18. Sunnysky

    How to translate compartmentalized liver to analog computer? I Just want to learn to translate the f

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2962855/ ?
  19. Sunnysky

    Can mosfet driver supply continuous current of 2Amps?

    - the chip will heat up enough to burn your finger even if add some copper heat spreading to the board on the drain. If you don't it will over heat fast. - Maximum Junction-to-Ambient = 166 'C/W means with 0.5W the junction rises 83'C+ ambient temp. to perhaps 110 'C . - looking at p3 the...
  20. Sunnysky

    Op amp comparator troubles

    If you wanted the DMG1013 to work, the gate would have a pullup to 12V and a series R of 10k to the collector output. thus providing 6 to 12V on the gate, making the builtin zener redundant.
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