Recent content by angeline_happy

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    Can i use a 1mA source to charge a 3V rechargeable battery?

    This is my school project. I have no choice. Got any way to increse the voltage coming out from photodetector? Why the chances of damaging the battery are so great? How the battery gets damage?
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    How to increse the voltage of output from photodiode, so that the voltage is higher than battery's voltage? Remarks: Only can add-on passive components; active components are not allow.
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    What Does It Cost to Set Up Electricity in a Terrace House?

    Just consider about copper wiring at here. I have no idea what is the element required to built up the wiring in a house. How much we need for each elements?
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    Bacially, how to measure a battery? Measure directly with multimeter? I need to consider voltage or current when measuring the battery? What is the different between fully charged battery and fully discharged battery? I had done an experiment to measure the voltage of fully charged...
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    Does it the reason that I can't charge the battery? How much current does "smart" charging circuit require? Actually, I should consider the V or I when measure a battery? Why? When charging a battery, I should consider V or I? I understand that this is an impractical case. But, it...
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    What Does It Cost to Set Up Electricity in a Terrace House?

    What i mean is wiring in a house. Actually, I'm calculating the price needed if i change the corpler wire in a house to fiber optic. I have no idea what is the element required to built up the wiring in a house. Can you please give me some direction?
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    I know that photodiodes is not used to generate electricity. Due to some reason, i have no choice but only can use photodiodes. I can't even use other additional device such as transformer. The only things that i have is a laser source, photodiode, and rechargeable battery. The rechargeable...
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    From the specification sheet, i found that the reverse voltage is 30V and maximum satuaration input power is 10dBm. However, availabled laser source in my school is 8dBm. So that supplied 8dBm into photodiode, will only get the voltage of 0.4V. Why like this happen? Why the voltage is so low?
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    What Does It Cost to Set Up Electricity in a Terrace House?

    Homework Statement How much we need to setup a home electricity system? I just need a very brief calculation. For example: A terrace house, how long is the wire? How much per unit? How much for a power meter?
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    Means that i have to know the voltage of photodiode? The problems is that i only manage to calculate the output current from photodiode by using formula: Ip=RPin, where Ip is output current from photodiode; R is responsivity; and Pin is the output power from laser source. May i know how...
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    How to know the resistance in photodiode? I can't found from the spec sheet.
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    Can i use a 1mA source to charge a 3V rechargeable battery?

    Can i use a 1mA source to charge a 3V rechargeable battery? (1mA source is the output from Photodiode. I can't put an amplifier because of some reason. Note that, the photodiode in this case is used to transfer power only.) Got one engineer told me that i can't do that. Because instead of...
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    Maximizing Efficiency: Benefits of Source and Channel Coding Explained

    What is the latest technology for channel coding and source coding?
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