Skip to main content
Electrical Engineering

Return to Question

'A' or amp(ere), not 'Amp'. Fixed random capitalisation.
Source Link
Transistor
Transistor
  • 180.3k
  • 14
  • 194
  • 417

Split Currentcurrent in a circuit?

I am looking to power an Arduino from a 12v12 V, 5aH Lead Acid5 Ah lead acid battery, hooked up to a solar charge controller. (Max output: 12V12 V, 20 Ampsamps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier Device Drawsdevice draws 6 Ampsamps at 12V12 V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 Ampsamps. After some research, I've found the "best" method is to use a switching-regulator (Constant Voltageconstant voltage), to reduce the Inputinput voltage of the Peltier to be ~6V~6 V, resulting in ~18 Wattswatts. (having a current Drawdraw from 2-3 Ampsamps) Constant Currentconstant current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Arduino will always receive 5V5 V. I am using a LM7805 Voltage Regulatorvoltage regulator for this. The peltierPeltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the arduinoArduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.

Split Current in a circuit?

I am looking to power an Arduino from a 12v, 5aH Lead Acid battery, hooked up to a solar charge controller. (Max output: 12V, 20 Amps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier Device Draws 6 Amps at 12V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 Amps. After some research, I've found the "best" method is to use a switching-regulator (Constant Voltage), to reduce the Input voltage of the Peltier to be ~6V, resulting in ~18 Watts. (having a current Draw from 2-3 Amps) Constant Current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Arduino will always receive 5V. I am using a LM7805 Voltage Regulator for this. The peltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the arduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.

Split current in a circuit?

I am looking to power an Arduino from a 12 V, 5 Ah lead acid battery, hooked up to a solar charge controller. (Max output: 12 V, 20 amps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier device draws 6 amps at 12 V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 amps. After some research, I've found the "best" method is to use a switching-regulator (constant voltage), to reduce the input voltage of the Peltier to be ~6 V, resulting in ~18 watts. (having a current draw from 2-3 amps) constant current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Arduino will always receive 5 V. I am using a LM7805 voltage regulator for this. The Peltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the Arduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.

deleted 5 characters in body
Source Link
drew wood
drew wood
  • 239
  • 2
  • 8

I am looking to power an Arduino from a 12v, 5aH Lead Acid battery, hooked up to a solar charge controller. (Max output: 12V, 20 Amps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier Device Draws 6 Amps at 12V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 Amps. After some research, I've found the "best" method is to use a switching-regulator (Constant Voltage), to reduce the Input voltage of the Peltier to be ~6V, resulting in ~18 Watts. (having a current Draw from 2-3 Amps) Constant Current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Raspberry PiArduino will always receive 5V. I am using a LM7805 Voltage Regulator for this. The peltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the arduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.

I am looking to power an Arduino from a 12v, 5aH Lead Acid battery, hooked up to a solar charge controller. (Max output: 12V, 20 Amps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier Device Draws 6 Amps at 12V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 Amps. After some research, I've found the "best" method is to use a switching-regulator (Constant Voltage), to reduce the Input voltage of the Peltier to be ~6V, resulting in ~18 Watts. (having a current Draw from 2-3 Amps) Constant Current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Raspberry Pi will always receive 5V. The peltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the arduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.

I am looking to power an Arduino from a 12v, 5aH Lead Acid battery, hooked up to a solar charge controller. (Max output: 12V, 20 Amps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier Device Draws 6 Amps at 12V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 Amps. After some research, I've found the "best" method is to use a switching-regulator (Constant Voltage), to reduce the Input voltage of the Peltier to be ~6V, resulting in ~18 Watts. (having a current Draw from 2-3 Amps) Constant Current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Arduino will always receive 5V. I am using a LM7805 Voltage Regulator for this. The peltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the arduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.

Source Link
drew wood
drew wood
  • 239
  • 2
  • 8

Split Current in a circuit?

I am looking to power an Arduino from a 12v, 5aH Lead Acid battery, hooked up to a solar charge controller. (Max output: 12V, 20 Amps). I am also looking to power a Peltier Device, in order to cool some water. The Peltier Device Draws 6 Amps at 12V. I am looking for:

  1. A way to limit the current drawn from the Peltier to ~3 Amps. After some research, I've found the "best" method is to use a switching-regulator (Constant Voltage), to reduce the Input voltage of the Peltier to be ~6V, resulting in ~18 Watts. (having a current Draw from 2-3 Amps) Constant Current may be a better solution, however I already have some buck-converters for constant voltage , so would like to use those if possible.

  2. Ensure that the Raspberry Pi will always receive 5V. The peltier will draw a variable current, based on its temperature, so I never want the Peltier to use so much power, that the arduino powers off.

I am still a semi-beginner, so I apologize if my questions don't make much sense.