MHVLib
20111011
An efficiency oriented runtime library for AVR microcontrollers
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00001 /* 00002 * Copyright (c) 2011, Make, Hack, Void Inc 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * * Redistributions of source code must retain the above copyright 00008 * notice, this list of conditions and the following disclaimer. 00009 * * Redistributions in binary form must reproduce the above copyright 00010 * notice, this list of conditions and the following disclaimer in the 00011 * documentation and/or other materials provided with the distribution. 00012 * * Neither the name of the Make, Hack, Void nor the 00013 * names of its contributors may be used to endorse or promote products 00014 * derived from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 00017 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00018 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00019 * DISCLAIMED. IN NO EVENT SHALL MAKE, HACK, VOID BE LIABLE FOR ANY 00020 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00021 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00022 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00023 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00024 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00025 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00026 */ 00027 00028 #ifndef MHV_VOLTAGEREGULATOR_H_ 00029 #define MHV_VOLTAGEREGULATOR_H_ 00030 00031 #ifdef MHV_AD_RESOLUTION 00032 #ifdef MHV_TIMER16_1 00033 #include <MHV_Timer16.h> 00034 00035 enum mhv_vreg_modes { 00036 MHV_VREG_MODE_BUCK, 00037 MHV_VREG_MODE_BOOST 00038 }; 00039 typedef enum mhv_vreg_modes MHV_VREG_MODES; 00040 00041 00042 class MHV_VoltageRegulator { 00043 private: 00044 MHV_VREG_MODES _mode; 00045 uint8_t _vref; 00046 float _vrefVoltage; 00047 uint16_t _targetADC; 00048 MHV_Timer16 *_timer; 00049 uint8_t _adcChannel; 00050 uint16_t _pwm; // The current PWM rate 00051 bool _lastMoveUp; 00052 bool _invert; 00053 uint16_t _lastADC; 00054 float _divider; 00055 00056 void regulateBoost(); 00057 void regulateBuck(); 00058 00059 public: 00060 MHV_VoltageRegulator(MHV_VREG_MODES mode, float voltage, float vrefVoltage, uint8_t vref, 00061 float divider, MHV_Timer16 *timer, uint8_t channel); 00062 void enable(); 00063 void disable(); 00064 float getVoltage(); 00065 void regulate(); 00066 }; 00067 00068 #endif // MHV_TIMER16_1 00069 #endif // MHV_AD_RESOLUTION 00070 #endif // MHV_VOLTAGEREGULATOR_H_