Temperature calibration device having reconfigurable heating/cooling modules to provide wide temperature range

A temperature calibration device, comprising:

• a block of thermally conductive material that is structured to be placed in thermal communication with a device to be calibrated;
• a plurality of Peltier cells in thermal contact with the block of thermally conductive material;
• a configurable connection device coupled to the Peltier cells, the configurable connection device being structured to connect the Peltier cells to each other in a first configuration responsive to a first control signal and to connect the Peltier cells to each other in a second configuration responsive to a second control signal, the second configuration being different from the first configuration;
• a power supply structured to apply a first voltage to the Peltier cells responsive to the first control signal and to apply a second voltage to the Peltier cells responsive to the second control signal, the second voltage having a polarity that is different from the polarity of the first voltage;
• and
• a control circuit coupled to the configurable connection device and the power supply, the control circuit being structured to apply the first control signal to the configurable connection device and the power supply when the device to be calibrated is to be cooled and to apply the second control signal to the configurable connection device and the power supply when the device to be calibrated is to be heated.

A temperature calibration device, comprising:

• a block of thermally conductive material that is structured to be placed in thermal communication with a device to be calibrated;
• a plurality of Peltier cells in thermal contact with the block of thermally conductive material;
• a power supply structured to apply a first voltage to the Peltier cells responsive to a first control signal and to apply a second voltage to the Peltier cells responsive to a second control signal, the second voltage having a magnitude and polarity that is different from the first voltage;
• and
• a control circuit coupled to the power supply, the control circuit being structured to apply the first control signal to the power supply when the device to be calibrated is to be cooled and to apply the second control signal to the power supply when the device to be calibrated is to be heated.