Copy of Laser Temperature Regulator using Peltier TEC - on Fri, 09/18/2020 - 10:42 Designer https://explore.partquest.com/node/341731 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/341731"></iframe> Title Description <p>This example shows the ability of a Peltier Module, or Thermo-Electric Cooler (TEC), to actively transfer heat away from a "laser" or other electronic device, during fast-changing power dissipation conditions. A thermistor, with resistance that is sensitive to temperature, is used in a Wheatstone Bridge configuration. It produces a differential voltage that is amplified by an op-amp circuit. The op-amp output voltage is approximately proportional to temperature, and 180 degrees out of phase.</p> <p>The rest of the control loop is modeled here using ideal mathematical control blocks. This abstraction allows the designer to focus on the overall performance of the regulator, and to assess the choice of PID gains during actual transient operation. These gains were selected using a nominal operating point, to ensure stability of the loop at that point. This was done in the companion design https://www.systemvision.com/design/laser-temperature-regulator-tdfs. But because many of the components in this loop are non-linear in nature (e.g. the TEC, thermistor, even the op-amp with rail voltage limiting), it is good practice to use simulation to verify performance during large-signal transients.</p> About text formats Tags TECPeltierThermistorPID Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Laser Temperature Regulator TDFS - on Tue, 08/25/2020 - 13:39 Designer https://explore.partquest.com/node/336323 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/336323"></iframe> Title Description <p>This example shows the loop-stability analysis, performed using the TDFS method, for a Pelier or TEC-based laser temperature regulation system. This analysis is part of the overall design assessment for the companion example system described here: https://www.systemvision.com/design/laser-temperature-regulator-using-peltier-tec</p> About text formats Tags TDFSTECPeltierThermistor Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of air conditioner - on Mon, 07/27/2020 - 22:54 Designer https://explore.partquest.com/node/329167 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/329167"></iframe> Title Description About text formats Tags air conditionerwater coolingPeltier Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Laser Temperature Regulator TDFS - on Sun, 04/12/2020 - 20:55 Designer https://explore.partquest.com/node/294602 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/294602"></iframe> Title Description <p>This example shows the loop-stability analysis, performed using the TDFS method, for a Pelier or TEC-based laser temperature regulation system. This analysis is part of the overall design assessment for the companion example system described here: https://www.systemvision.com/design/laser-temperature-regulator-using-peltier-tec</p> About text formats Tags TDFSTECPeltierThermistor Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Laser Temperature Regulator using Peltier TEC and Vishay Thermistor Designer https://explore.partquest.com/node/270478 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/270478"></iframe> Title Description <p>This "Live Application" example shows the ability of a Peltier Module, or Thermo-Electric Cooler (TEC), to actively transfer heat away from a "laser" or other electronic device, during fast-changing power dissipation conditions. A Vishay thermistor from our Partner Library, with resistance that is sensitive to temperature, is used in a Wheatstone Bridge configuration. It produces a differential voltage that is amplified by an op-amp circuit. The op-amp output voltage is approximately proportional to temperature.</p><p>The rest of the control loop is modeled here using ideal mathematical control blocks. This abstraction allows the designer to focus on the overall performance of the regulator, and to assess the choice of PID gains during actual transient operation.</p><p>All of the parameters in blue can be changed by the user and a new simulation run. The updated scope waveform results will show the effect of that change. You can change the electrical resistance of the "laser", which is just a simple resistance heating element for this example, to change the power dissipation level. You can also change the heat transfer resistance values in the thermal network, to see their effect on system performance. Finally, you can change the PID control block gains and see the effect on the steady-state and transient behavior of this temperature regulation system.</p><p>Note: You can move the waveform probes to see any other signal in the system.</p> About text formats Tags TECPeltierThermistorPIDVIshay NTC thermistor Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
air conditioner Designer https://explore.partquest.com/node/268056 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/268056"></iframe> Title Description About text formats Tags air conditionerwater coolingPeltier Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Laser Temperature Regulator using Peltier TEC with Vishay TFPT temperature sensor Designer https://explore.partquest.com/node/262797 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/262797"></iframe> Title Description <p>Initial simulation and description by Mike Donnelly </p><p>The generic thermistor has been replaced by a Vishay TFPT0603 1 Kohms 0603 case. The sensor element (now positive temperature coefficient) has been switched in the opposite arm of the wheatstone bridge. In this live tunable design , the target temperature level of the laser device can be chosen between 5 and 30°C. The temprature regulation will be working accordingly. The tolerances of the TFPT sensor (R25 in % and slope ppm/k) can be chosen inside the specification (+/-0.5% and +/-400 ppm/K)</p> About text formats Tags TECPeltierPIDVISHAYRTDTFPT Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Laser Temperature Regulator using Peltier TEC with Vishay PTS temperature sensor Designer https://explore.partquest.com/node/261994 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/261994"></iframe> Title Description <p>Initial simulation and description by Mike Donnelly (NTC themistor as temperature sensor )</p><p>https://www.systemvision.com/design/laser-temperature-regulator-using-peltier-tec</p><p>The generic thermistor has been replaced by a Vishay PTS 1 Kohms 1206 case. The sensor element (now positive temperature coefficient) has been switched in the opposite arm of the wheatstone bridge. In this live tunable design, the user can implement different tolerances on dT(0°C) (-0.6°C ,-0.3°C ,0°C nominal ,0.3°C, 0.6 °C) and 5 tolerances on the slope (+/-5 mK/K , 0 mK/K (nominal), +/-10 mK/K) for the sensing element PTS1206 u74. The target temperature to be controlled can be swept from 15°C to 25°C (tempgen1). The PTS element u73 is for simulation only: the only goal of this part is to fix the temperature value at which the laser must be controlled. The tolerances on this part must not be adjusted.</p> About text formats Tags TECPeltierPIDVISHAYPTSRTD Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Laser Temperature Regulator using Peltier TEC Designer https://explore.partquest.com/node/256624 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/256624"></iframe> Title Description <p>Initial simulation and description by Mike Donnelly</p> <p>The generic thermistor has been replaced by a Vishay NTCS 10 Kohms and the sensor bridge resistors are adapted accordingly. The temperature of the cold point of the Peltier is transmitted to the NTC thermistor via a transfer function (with eventual delay and gradient , TUNABLE response) that takes account of the practical tribulations of the temperature measurements.</p> About text formats Tags TECPeltierThermistorPIDVISHAY Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Calibrate TEC/TEG for Energy Harvesting Designer https://explore.partquest.com/node/164136 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/164136"></iframe> Title Description <p>This example shows the effect of sweeping the load resistance from 0 to 10 Ohms. The rate of change is one Ohm per second, so that the time value corresponds to the instantaneous load resistance value. The example TEC/TEG represents a CUI CP60340 Peltier Module.</p><p>The TEC appears to be capable of generating approximately 0.9 Watt (maximum power, see magenta waveform) with a temperature differential of 75 degC and perfect thermal coupling, and the hot side at a constant 100 degC.</p><p>This test schematic can be reused to calibrate other TEC/TEG models and under various differential temperature and loading conditions.</p> About text formats Tags PeltierTEGThermoelectricSeebeck Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
