TCB-NA Temperature Control Board Semiconductor Cooling Module Support Bidirectional Temperature Control

TCB-NA Temperature Control Board Semiconductor Cooling Module Support Bidirectional Temperature Control

Description:
- The division TEC temperature control panel is specially designed for the temperature control system using semiconductor refrigerating plate (TEC), and adopts innovative design scheme.
- High reliability TEC voltage and current wide range. NA temperature control stability is +/-0.1, the serial port is used to directly modify the set temperature or summon information. Provides an alert ready interface. This plate has been widely used in the laser field for a long time.

Features:
- Digital integral separation PID algorithm with adjustable parameters and periods.
- 0.1 high precision temperature control, +/- 0.1° stability.
- No additional heat dissipation measures are required, and no heat dissipation bottom plate is required.
- High precision voltage reference, temperature measurement accuracy is guaranteed to be +/- 0.25°, full range +/- 0.5°, and can be corrected.
- Board electric voltage: depending on TEC.
- TEC maximum applicable range of voltage: 5V ~ 24V.
- TEC large current range: 10A (24V electricity), 12A (12V electricity).
- Two 12706 in parallel, or two 12710 in series.
- Bidirectional control, heating and refrigeration (can be configured as single heating or single cooling through the communication protocol, which is optional).
- Heating elements such as ceramic and resistance wire are supported in single heating mode (for single heating version).
- You can set and detect the temperature through a serial port (ASCII code protocol, provide instructions)
- Alarm, ready signal output, support DISABLE TEC output
- Control mode: PWM & ON/OFF

Recommended Applications:
- Temperature control system with TEC (semiconductor cooler, thermoelectric cooler) as the temperature control element.
- Suitable for, but not limited to, temperature control of laser diodes.
- Suitable for various fields such as industry and home appliances.

Package Included:
- 1 x Temperature Control Board

About TEC Temperature Control:
- TEC: also called semiconductor refrigeration film, or thermoelectric refrigeration film, which uses the Peltier effect, that is, when direct current flows in different directions through a couple of two different semiconductor materials in series, the heat generated is unidirectional Flow effect, which can achieve the purpose of cooling or heating, and made a semiconductor chip device.
- TEC temperature control board: use DC power supply, use TEC as the temperature control element, use a temperature probe to detect the temperature of the controlled object, and use PID algorithm inside the temperature control board to adjust the size and direction of the current supplied to the TEC element in real time, so as to achieve The purpose of constant temperature.
- Long-term verification in the field of industrial lasers.
- High stability (+/-0.01), universal TEC temperature control.
- Bidirectional temperature control, automatic switching between heating and cooling, supporting various types of TEC.
- Can run independently. Parameter viewing and setting can be connected to the display screen, or other single-chip serial port control, or use general-purpose serial port software or dedicated upper computer software.
- Support multi-channel control, with specific documentation.
- This board is small in size and has high cost performance. It is suitable for occasions requiring high-precision temperature control and high TEC power, such as the temperature control of LD laser diode. Note that before selecting NA, be sure to see the following "TCB-NA Special reminder".

Temperature Control Panel Selection Table:

TCB-NA Special Reminder:
- It is a product with small volume and high cost performance. It has been applied to the temperature control of LASER DIODE in large quantities and has been applied for more than 15 years. Its principle and reliability have been verified for a long time. However, compared with other models of our company, pay special attention to the following points when using TCB-NA:
1. The electric voltage of the TCB-NA board must be less than or equal to the fixed voltage of TEC to avoid the overload of TEC, that is, the output of the TCB-NA has no voltage limit function, other temperature control boards (NE // NE-AH/NC/Sx) can limit the output voltage through instructions.
2. TCB-NA control mode will increase the ripple of electric switching power supply,if there are other boards or devices that are sensitive to the ripple of the switching power supply, do not share a switching power supply with NA. In this case, power NA alone.
3. Compared with higher TCB-NA, TCB-NE not only has low temperature control resolution, but also has a cooling efficiency of about 10%.

Board Control Mode:
- This board uses serial communication to modify and monitor information. There are several control methods:
- Our special display screen DISP-TCB(Connect the serial port of the temperature control board to the display screen); not included.
- Dedicated PC software TCBMate (connect the serial port of the temperature control board to the computer)
- Directly use serial port to send commands to control (single chip microcomputer, or PC), refer to the communication protocol section of the instruction manual.

System Diagram:
- As shown in the following figure, to form a complete temperature control system, in addition to the temperature control board, it is also necessary to select the appropriate TEC according to the actual needs of the project (TEC models are many, different, different sizes, different current and voltage), A suitable switching power supply is also needed to supply direct current to the board, and a temperature probe is also needed.

Signal Connection Diagram:
- As shown in the following figure, the connection method of the temperature control board is similar, that is, connecting the probe (the two feet of the probe have no direction), connecting the TEC (the TEC has direction, and there is a description of the connection method), connecting the wires, note that the wires must not be connected back to the serial port control line.

About TEC:
- When considering the current-voltage relationship of TEC, TEC can be simply understood as a resistor, such as a 12V 6A TEC, which can be regarded as a 2 ohm resistor. Then give this TEC 6V drive voltage, its output current is 3A. Limiting the maximum current of the TEC is the same as limiting the maximum voltage. Limiting the maximum driving voltage of the board to the TEC is also equivalent to limiting the maximum current of the TEC. The board has the SU instruction to limit the maximum output voltage (except TCB-NA). TEC can work in parallel or in series. For example, two 12V/4A TECs become 24V/4A in series, and 12V/8A in parallel.

Call information about serial port, set temperature, monitor temperature:
- If you use a computer to view and set the parameters, you need to make a serial cable (available in our shop) to connect to the computer. If your computer does not have a serial port, you need to buy another USB to serial cable. For details, please refer to the description of the document <<Serial Communication Guidelines>>.

About the Interface:
- The manual has detailed interface definitions. The board interface uses 2510 terminals. The manufacturer will provide plugs and ferrules, and no additional purchase is required.

About Stability:
- The stability of temperature control, such as +-0.01, that is, the temperature of the controlled object in the normal system can be stabilized within +-0.01 of the set value. Generally speaking, for temperature control systems, the most important parameter is stability.
- But note that people who have no practical experience in temperature control applications may have deviations in their understanding of stability.
- The temperature control boards of our company have been tested on our load, and the marked accuracy parameters can be confirmed to be achieved, such as +/- 0.01 stability! Note, however, that the nominal rating can be achieved, which does not mean that the customer can simply build a system to achieve it! Because temperature control is a system, the temperature control board is only one of them. For example, the installation method of the probe has a great influence on the temperature control effect. For details, please see the instructions on the product manual and the application data. Another example is the temperature control range, the nominal range of the board, which means the range supported by the board's algorithm, not that it can be achieved with this board. For example, the board's nominal minimum can be controlled to -20 degrees. If the user's TEC power is not enough, or the object design has other problems, such as poor heat dissipation, let alone -20, even 0 degrees may not be reached.

Regarding Temperature Accuracy:
- Accuracy represents the error between the current measured temperature and the absolute true temperature in a physical sense. For general systems, this value is not important, because for example, the currently measured measured temperature is 25 degrees, and the absolute true temperature is 24.5 If the object is stable at the measured temperature of 25 degrees, the object is also stable at the true temperature of 24.5 degrees. This is enough for a general system. As for the current real temperature, it does not matter (for example, for laser applications, it is necessary to adjust to find an optimal temperature to obtain the best output). However, if the temperature measurement accuracy is high, it is also beneficial. One is that some applications may require high accuracy (for example, to achieve a certain temperature scene to measure other characteristics of the object), the other is high The accuracy can realize the interchangeability of the boards, that is, for the same controlled object, even if the temperature control board is changed, as long as it is set to the original setting value, there is no need to find an optimal temperature again.