39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
/*
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* Power.hpp
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*
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* Created on: 28 Oct, 2018
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* Authors: Ben V. Brown, David Hilton (David's Idea)
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*/
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#include "stdint.h"
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#include <history.hpp>
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#include "hardware.h"
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#ifndef POWER_HPP_
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#define POWER_HPP_
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// thermal mass = 1690 milliJ/*C for my tip.
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// -> Wattsx10*Seconds to raise Temp from room temp to +100*C, divided by 100*C.
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// we divide mass by 20 to let the I term dominate near the set point.
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// This is necessary because of the temp noise and thermal lag in the system.
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// Once we have feed-forward temp estimation we should be able to better tune this.
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#ifdef MODEL_TS100
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const int32_t tipMass = 3500; // divide here so division is compile-time.
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const uint8_t tipResistance = 85; //x10 ohms, 8.5 typical for ts100, 4.5 typical for ts80
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#endif
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#ifdef MODEL_TS80
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const uint32_t tipMass = 4500;
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const uint8_t tipResistance = 45; //x10 ohms, 8.5 typical for ts100, 4.5 typical for ts80
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#endif
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const uint8_t oscillationPeriod = 8*PID_TIM_HZ; // I term look back value
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extern history<uint32_t, oscillationPeriod> x10WattHistory;
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int32_t tempToX10Watts(int32_t rawTemp);
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void setTipX10Watts(int32_t mw);
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uint8_t X10WattsToPWM(int32_t milliWatts, uint8_t sample = 0);
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int32_t PWMToX10Watts(uint8_t pwm, uint8_t sample = 0);
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uint32_t availableW10(uint8_t sample) ;
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#endif /* POWER_HPP_ */
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