Technology Transfer

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*Technology Transfer* Several Low-Cost Electrophoresis Products
1. Automatic Electrophoresis System DESCRIPTION The Automatic Electrophoresis System (AES) integrates the electrophoresis tank, the power supply, the measuring devices, the control device, the buffer cooling system, and the automatic buffer loading system. It has the advantages of easy to use, powerful, low cost, and small in size. As a result of the digital design, while maintaining the required output precision (1%), the system needs not to be manually adjusted/configured after manufacturing, make it easier to manufacture, and also ensuring the quality of the product at the same time.

The circuit of this system is made up of three different components, the power supply unit, the control unit, and the keyboard/display unit. All functions of the system (such as keyboard input, LCD display, power supply control, loading and unloading of buffer for electrophoresis, measuring, timing and alarming, etc) are controlled by a micro-controller. At the same time, the different components of the system are connected with each other via the I²C bus, which simplifies the circuit structure, and reduces the size of the circuit board.
FEATURES 1. The buffer for electrophoresis is loaded-to/unloaded-from the electrophoresis tank automatically when electrophoresis is started/ended; thus avoiding any contact between the operator’s hand and liquid when placing/removing the gel into/from the tank. 2. The operator can enter the voltage, current, time, and other settings for the electrophoresis process through the keyboard directly; make the system very easy to operate. 3. Two modes available, the constant-voltage mode and the constant-current mode. 4. The system can preload and store up to twelve (12) programs. They can be run directly when about to run gel. 5. The system includes an eight-digit (8) LCD display that can show information about the mode, voltage, current, temperature, time, and other messages. While running gel, the voltage and the current measures can be displayed on the screen, or, the time and the temperature can be displayed on the screen. Those two also can be displayed alternately. 6. Real-time display the temperature of the buffer. 7. An automatic buffer fan-cooling system is available. The fan is turned on whenever the temperature of the buffer exceeds a pre-defined value. 8. The AES has other features such as buffer detection, electrophoresis tank lid lock, automatic voltage regulation when output voltage overloads, over-current/overload automatic shutdown protection, etc. 9. Small size and light. Low cost. SPECIFICATIONS Output Voltage Range: 10V to 150V w/ 1V intervals Output Current Range: 5mA to 200mA w/ 1mA intervals Timing Range: 0min to 255min w/ 1min intervals Temperature Range: 0°C to +125°C (32°F to +257°F) Voltage and Current Accuracy: 1% ±1dgts Temperature Accuracy: ±1°C (0°C to +85°C range)
2. Multi-Output Separately-Adjustable Electrophoresis Power Supply DESCRIPTION The Multi-Output Separately-Adjustable Electrophoresis Power Supply has four (4) power outputs. The program for every output can be set and saved separately. The power supply uses a LCD dot matrix display, so that more information can be shown on the screen, and the display will also be clearer. All functions of the power supply (such as four power output controls, keyboard input, LCD display, status monitoring, timing and alarming, etc) are controlled by a micro-controller. While maintaining the required output precision (1%), the power supply needs not to be manually adjusted/configured after manufacturing, makes it easier to manufacture, and also ensuring the quality of the product at the same time. FEATURES 1. Four (4) power outputs. Each output can be in either constant voltage mode or constant current mode. The voltage, current, and timing of each output can also be set separately. 2. The four (4) outputs can be turned on simultaneously, while each output can also be turned on/off separately, regardless of whether the others were running 3. Every output has a jack for temperature measuring and a jack for controlling the output. 4. The LCD display has a backlight, offers high brightness. The mode, voltage, current, temperature, and timing information can be all displayed simultaneously. Other character-based information can also be displayed. 5. The power supply has a user-friendly interface. The voltage, current, timing, and other information of each output can all be set through the menu interface, which makes it easy and convenient to use. 6. Each output can switch between the constant voltage mode and the constant current mode. 7. Each output can preload and save up to one hundred (100) programs. They can be run directly when about to run gel. 8. The power supply also has features such as automatic voltage regulation when output voltage overloads and over-current/overload automatic shutdown protection. 9. The power supply is small in size and light. Its costs are low. SPECIFICATIONS Output Voltage Range: 10V to 300V w/ 1V intervals Output Current Range: 5mA to 250mA w/ 1mA intervals (each output) Timing Range: 0min to 999mins w/ 1min intervals Temperature Range: 0°C to +125°C (32°F to +257°F) Voltage and Current Accuracy: 1% ±1dgts Temperature Accuracy: ±1°C (0°C to +85°C range)
3. Mini Electrophoresis Power Supply DESCRIPTION The Mini Electrophoresis Power Supply is very small in size; its dimensions are 4 in. x 4 in. x 1 3/4 in. (length x width x height). It uses a three-digit (3) LED display, and its circuit is simpler and cheaper to make. It has one (1) pair of jacks for power output, one (1) jack for temperature probe (for temperature measuring), and one (1) jack for controlling the power supply. All functions of the power supply (such as power output controls, keyboard input, LED display, status monitoring, timing and alarming, etc) are performed by a micro-controller. While maintaining the required output precision (1%), the power supply needs not to be manually adjusted/configured after manufacturing, makes it easier to manufacture, and also ensuring the quality of the product at the same time. FEATURES 1. The operator can enter the voltage, current, time, and other settings for the electrophoresis process through the keyboard directly; make the system very easy to operate. 2. Two modes available, the constant-voltage mode and the constant-current mode 3. The system can store up to twelve (12) programs. They can be run directly when about to run gel. 4. The voltage, current, temperature, and timing information can be displayed, one at a time, on the LED display. They also can be displayed alternately. 5. The power supply also has other features such as automatic voltage regulation when output voltage overloads, over-current/overload automatic shutdown protection, etc. 6. The power supply is small in size and light. Its costs are low. SPECIFICATIONS Output Voltage Range: 10V to 200V w/ 1V intervals Output Current Range: 5mA to 250mA w/ 1mA intervals Timing Range: 0min to 255min w/ 1min intervals Temperature Range: 0°C to +125°C (32°F to +257°F) Voltage and Current Accuracy: 1% ±1dgts Temperature Accuracy: ±1°C (0°C to +85°C range)