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66 lines
1.5 KiB
66 lines
1.5 KiB
3 years ago
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{
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"metadata": {
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.7"
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},
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"orig_nbformat": 4,
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"kernelspec": {
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"name": "python3",
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"display_name": "Python 3.9.7 64-bit"
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},
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"interpreter": {
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"hash": "c7df07ecfb874d96581378ee2edfb0abd56d9de008e1391e0ed3612e4e80d4b7"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2,
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 11,
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"source": [
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"# Battery voltage comparator with histerezes\r\n",
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"\r\n",
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"\r\n",
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"supply_voltage = 3.3\r\n",
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"reference_voltage = 3\r\n",
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"\r\n",
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"R1 = 50000\r\n",
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"R2 = 330000\r\n",
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"\r\n",
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"Vin_High = R1 * (reference_voltage / R2) + reference_voltage \r\n",
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"\r\n",
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"print(\"Voltage switch to high: {}V\".format(round(Vin_High,2)))\r\n",
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"\r\n",
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"Vin_Low = (reference_voltage*(R1+R2) - supply_voltage * R1) / R2\r\n",
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"\r\n",
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"print(\"Voltage switch to low: {}V\".format(round(Vin_Low,2)))\r\n",
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"\r\n",
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"Vin_delta = supply_voltage * (R1/R2)\r\n",
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"\r\n",
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"print(\"Voltage delta: {}V\".format(round(Vin_delta,2)))\r\n"
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],
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"outputs": [
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{
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"output_type": "stream",
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"name": "stdout",
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"text": [
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"Voltage switch to high: 3.45V\n",
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"Voltage switch to low: 2.95V\n",
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"Voltage delta: 0.5V\n"
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]
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}
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],
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"metadata": {}
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}
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]
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}
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