Recent content by emtae55

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    Rate of conduction heat transfer with different hot-side and cold-side areas

    Oh, I made a mistake. What i meant was 'not' a conductivity but 'the rate of conduction heat transfer' Sorry :( I'll edit my subject.
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    Rate of conduction heat transfer with different hot-side and cold-side areas

    I edited it.
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    Rate of conduction heat transfer with different hot-side and cold-side areas

    When we measure 'the rate of conduction heat transfer'=Q , we assume that the hot side and the cold side's area are same. But if the both side's area is different to each other, how can i know the rate of conduction heat transfer? like below figure. Would you like to help me?? Thanks.
    • emtae55
    • Thread
    • Areas Conduction Conduction heat Heat Heat transfer Rate Thermal conductivity
    • Replies: 8
    • Forum: Thermodynamics
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    Could you check this Li-ion charging circuit?

    Because it's a 18650, it might be about 3.7V. Also, the max current of Q1 is 50 nano A.
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    Could you check this Li-ion charging circuit?

    Well, because i can change the battery to 18650(standard), so you might not to be worry about that.
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    Could you check this Li-ion charging circuit?

    I made a Li-ion charging circuit with LTspice, and I wonder if it works well. Could you check this??
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    Could you check this Li-ion charging circuit?

    Thanks for your help! have a good day
  8. E

    Could you check this Li-ion charging circuit?

    I'd like to use LTspice, but I can't find the Li-ion battery component. Would you find me the component(or library)? Thanks.
  9. E

    Could you check this Li-ion charging circuit?

    I want to know the time for charging it.
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    Could you check this Li-ion charging circuit?

    Can secondary cell can be described in circuit simulator?? With other symbols like capacitor. Also I wonder if there's a program that provide secondary cell(like Li-ion battery). Please help me
    • emtae55
    • Thread
    • Charging Circuit Electric circuit Electricity Li-ion Li-ion battery Ltspice
    • Replies: 20
    • Forum: Electrical Engineering
  11. E

    Could you show me a super capacitor's charging circuit? :(

    What is the fastest circuit to charge a supercapacitor?? could you show me??
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    Is My Super Capacitor Power Bank Circuit Safe?

    I'm in a project that make a powerbank with supercapacitor. I made it but it didn't work. Can you confirm it?? My circuit is here. The green one is a board (charging board, 864-kc v1.0). It gives 4.2V DC to capacitor.
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    Is My Super Capacitor Power Bank Circuit Safe?

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    Is My Super Capacitor Power Bank Circuit Safe?

    I tried it, but it didn't work. I charged the caps and tried to charge with the board, but i couldn't charge them
  15. E

    Is My Super Capacitor Power Bank Circuit Safe?

    Um, guys, I tried to make a batteries, but it doesn't work. I used DMM but it displayed 0V when i measured the charging part.(The charging board's 'B+' and 'B-') I think it is because of the board, so i want to find another one. The board's name is '864-KC v1.0'. Google it! and the circuit was...