BTR NETCOM controller German BTR NETCOM model BTR NETCOM price

The BTR NETCOM controller is the component that directs the various parts of a computer to work in coordination according to the functional requirements of instructions. It is the neural center and command hub of the computer, composed of three components: the instruction register IR, the program counter PC, and the operation controller 0C. It is extremely important for coordinating the orderly operation of the entire computer. Each functional component within the CPU performs a specific function. The implementation of control components for information transmission between various components and data flow. The path for transmitting information between many digital components is usually called a "data path". Where the information starts, which register or multiplexer it passes through in the middle, and which register it finally reaches must all be controlled.

BTR NETCOM controller types

1) Low-voltage LED product controller: Low-voltage LED products are generally designed for a voltage of 12V-36V, with 3-6 LED units connected in series per circuit, using resistors for voltage reduction and current limiting, with a current of less than 20mA per circuit. A LED product consists of multiple circuits of LED. The advantages are low voltage, simple structure, and ease of design; the disadvantage is that when the product scale is large, the current is very high, requiring a low-voltage switching power supply. Due to the limitations of the product's disadvantages, low voltage cannot transmit power over long distances and is limited to products of small volume, such as sign text and small patterns. Based on this characteristic, the controller design specifications are: for 12V, use 75A/30V MOS power transistors for control, with an output current of 8A per circuit; for 24-36V, use 60A/50V MOS power transistors for control, with an output current of 5A per circuit. Users can select the number of controller circuits based on the above specifications. For jumping effects, choose the NE20 low-voltage series; for gradient effects, choose the NE10 low-voltage series controller. Note that the LED must use a common anode (+) connection method, with the controller controlling the cathode (-). The controller does not include a low-voltage power supply. 2) High-voltage LED product controller: High-voltage LED products are designed for AC/DC 220V voltage, with 36-48 LED units connected in series per circuit, and a current of less than 20mA per circuit. There are two current-limiting methods. One is resistor current limiting, which results in high resistor power consumption. It is recommended to connect one 1/4W metal film resistor in series with every 4 LED units for uniform heat distribution. This connection method is the most stable and reliable. The other is resistor-capacitor series current limiting. In this method, most of the voltage drop occurs across the capacitor, resulting in low resistor power consumption. It can only be used in a stable, continuously lit state. If flashing occurs, the capacitor stores energy, causing the voltage to double, which can easily damage the LED. Any LED using a controller must use the resistor current-limiting method. Generally, each circuit has one meter of LED, with a power of 5W, and the three-color power is 15W per meter. Common gradient controllers use NE112K to control DC 1200W, NE103D AC load 4500W DC load 1500W. If there are many flashing units for the light tubes, use NE112K; if only overall flashing is required, use NE103D. If using the gradient method, pay attention to load matching. The luminous distribution characteristics of neon lights and LED are different, and different types of loads cannot be mixed in the same circuit. 3) Low-voltage serial controller: The characteristic of the low-voltage LED product serial controller is that it controls a large number of circuits, achieving control through serial signal transmission. Generally, controlling 512 units requires only 4 control lines. The serial LED controller requires registers on the LED light source board. The controller model NE040S can be selected, with a maximum capacity of 4096KBit. If the load is 512 units of LED, it can achieve a maximum of 8192 frames. Additionally, there are controllers used in the security industry, which are devices that control detectors to monitor gas within various working zones.

BTR NETCOM controller composition

1) Control memory (Control Memory) is used to store the microprograms corresponding to each machine instruction. The decoder is used to form the entry address of the microprogram corresponding to the machine instruction. When the microinstructions of the microprogram corresponding to a machine instruction are fetched one by one and sent to the microinstruction register, the micro-operation commands are issued according to the pre-designed scheme, thereby completing the function of one machine instruction. This applies to every machine instruction. 2) The width of the microinstruction directly determines the width of the microprogram controller. To simplify the control memory, measures can be taken to shorten the width of the microinstruction. For example, adopting field decoding with single-stage segmented decoding. Obviously, the control field of the microinstruction will be greatly shortened. Some micro-operation commands that need to be generated simultaneously cannot be arranged in the same field. To further shorten the control field, the field decoding can be designed as two-stage or multi-stage.

BTR NETCOM controller applications

For some electronic devices, there are automatic alarm settings. Alarm control is also a field frequently used in microcontroller technology, mainly reflected in the following aspects: First, for some automatic alarm devices, such as fire alarms commonly used in homes, these are devices that activate intelligent alarms when external environmental conditions reach a certain level. If the smoke concentration indoors reaches a certain level, or if collected external data reaches a certain state, the alarm setting is automatically triggered, thereby realizing the function of intelligent alarming. Second, for some intelligent electronic devices, if the external environment exceeds the device's operating range, or if there are abnormalities in the device, its own alarm mechanism is triggered, allowing users to promptly understand the device's operational status and provide solutions based on the alarm information. For example, in some factories, equipment is often installed to monitor the production environment. When certain abnormal data occurs, an alarm is triggered. To ensure the normal operation of the equipment, maintenance personnel need to handle it in time to avoid major failures.

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