ps_faq
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ps_faq [07/08/2018 14:14] pieter [What about connecting more than one unit to the same power supply?] |
ps_faq [07/08/2018 14:43] pieter |
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| This means that the power depends on both voltage and current. But since current depends on the resistance of the connected unit it's impossible to force to generate a certain power. The only thing that can be done is to **limit** the power supply to generate a certain power. | This means that the power depends on both voltage and current. But since current depends on the resistance of the connected unit it's impossible to force to generate a certain power. The only thing that can be done is to **limit** the power supply to generate a certain power. | ||
| - | ==== Behaviour of a power supply ==== | + | ==== Behaviour of a power supply |
| - | When **RUN** is pressed, the internal generator will start building up the high voltage at the output terminals while voltage and current are constantly measured and power is calculated. When one of the pre-set parameters is exceeded, the generator will stop rising and starts to adjust the Voltage to keep that parameter constant. | + | When **RUN** is pressed, the internal generator will start building up the high voltage at the output terminals while voltage and current are constantly measured and power is calculated. When one of the pre-set parameters is exceeded, the generator will stop rising and starts to adjust the Voltage to keep that parameter constant. |
| - | ==== Constant modes ==== | + | When one of the other parameters is exceeded while the power supply is already |
| - | When one of the other parameters is exceeded while the power supply is in constant mode, it will switch to that parameter to be held constant. Make sure that the limits of the parameters that are not ought to be held constant, are set to a sufficient high value: | + | |
| + | Make sure that the limits of the parameters that are not ought to be held constant, are set to a sufficient high value: | ||
| <WRAP center round 90%> | <WRAP center round 90%> | ||
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| ====What about connecting more than one unit to the same power supply?==== | ====What about connecting more than one unit to the same power supply?==== | ||
| - | The outlets being in parallel each electrophoresis unit will be supplied with exactly the same voltage. However, current and power may differ due to differences between them even when the same model, gel, buffers, etc... are used. Therefore, it is recommended to run several electrophoresis units only in the constant Voltage mode on the same power supply. The sum of the currents of each tank may not exceed the maximum current of the power supply, the same for the sum of the required power. | + | The outlets being in parallel each electrophoresis unit will be supplied with exactly the same voltage. However, current and power may differ due to differences between them even when the same model, gel, buffers, etc... are used. Therefore, it is recommended to run several electrophoresis units only in the constant Voltage mode on the same power supply. |
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| + | The total current and power of the power supply will rise for each tank connected to it. The sum of the currents of each tank may not exceed the maximum current of the power supply, the same for the sum of the required power. | ||
ps_faq.txt · Last modified: 07/08/2018 14:43 by pieter
