In the design of switching power supply, the physical design of the PCB board must be proper, otherwise it may cause excessive electromagnetic interference and lead to unstable power supply.
1. The design process from the schematic diagram to the PCB should be rigorous and perfect: establish component parameters - > input principle netlist - > design parameter setting - > manual layout - > manual wiring - > verification design - > review - > CAM output.
2. The spacing of adjacent wires must meet the electrical safety requirements, and the spacing should be as wide as possible. The minimum spacing should at least be suitable for the voltage to be withheld, and when the wiring density is low, the spacing of the signal lines can be appropriately increased, and the signal lines with high and low levels should be as short as possible and the spacing should be increased.
3. The practice of component layout has proved that even if the circuit schematic design is correct, the improper design of the printed circuit board will have an adverse impact on the reliability of electronic equipment.
4. The wiring switching power supply contains high-frequency signals, and any printed wire on the PCB can play the role of an antenna, and the length and width of the printed wire will affect its impedance and inductive impedance, thereby affecting the frequency response. Therefore, the placement of the ground wire should be carefully considered in the layout, and mixing various ground wires will cause the power supply to work unstable.
5. After the wiring design is completed, it is necessary to carefully check whether the wiring design conforms to the rules formulated by the designer, and at the same time, it is also necessary to confirm whether the rules formulated meet the needs of the printed board production process.
6. According to the design rules, review the layer definition, line width, spacing, pad, and via settings.
|
More on that
|
【Omron industry case】Application case of laser die-cutting machine for secondary battery
Process introduction
In the traditional die-cutting process, because the cutter cannot cut the material completely, the connecting frame will be left, which increases the cost of the material. In addition, the service life of the die-cutting knife is 1 million times, such as long-term continuous operation, it needs to be replaced and maintained in time, and the maintenance and debugging time is also very long.
|
|
Omron achieves its goal of increasing its share of the local healthcare market
Omron Asia Pacific Ltd. Philippines signed an agreement with Metro Drug Inc., a pharmaceutical sales and distribution company, to expand its distribution network for OMRON Healthcare Philippines' blood pressure monitors, nebulizers, thermometers, body composition monitors, and TENS massagers ...
|
|
Routine maintenance of Omron PLC
1. The electrical control cabinet installed with PLC should have a clean and dry environment. Moisture-absorbing dry materials should be placed inside, and the splashing of coolant and oil mist should be prevented.
2. Regardless of the system working or shutdown, the electrical cabinet door should always be closed, and the electrical components should be kept in a good state.
|
|
Introduction to the classification of Omron relay switch contacts
1.A contacts
A contact is a contact in which the two contact terminals are separated (OFF) when the switch is not operated, and closed (ON) when the switch is operated. If you want to start the load by operating the switch, you can use the A contact. A circuit is a circuit that uses a contact without operating the switch (pressing ...
|
|
Omron PLC--CP1H series product model
1. CP1H-X40DR-A 40-point CPU unit, 24-in 16-point relay output. High speed counting 50/100kHz 4-axis .usb port programming.
2. CP1H-XA40DR-A 40 points CPU unit, 24 into 16 points relay output. High speed counting 50/100kHz 4-axis .usb port programming. Integrated Simulation ...
|
|
Address allocation of Omron PLC - CPU unit address allocation
1. CPU unit address allocation
Type X and XA CPUs
The X and XA CPU units come with 40 I/O, of which 24 are inputs and 16 are outputs, and the input part of the CIO area occupies 0 - 1 channel, with a total of 24 input bits:
12 of these bits are 0 bits of channel 00—— ...
|
|
The application of Omron in laser welding of the top cover of automotive power battery
Process introduction
The assembly process of automobile power battery and cell section is divided into:
1.Hot pressing 2.Tab welding 3.Adapter welding 4.Coating 5.Into the shell 6.Top cover welding
Among them, top cover welding is the last process, which uses the laser welding process to combine the top cover with ...
|
|
Introduction to the wiring steps of Omron switch relays
1. Before connecting, determine the voltage required for the proximity switch, and if it is a 3-wire system, determine whether it is PNP type or NPN type. The proximity switch is divided into 2-wire, 3-wire and 4-wire systems.
2. When the wire system proximity switch is connected with the relay, it is in series form. i.e. the relay is connected to the proximity switch ...
|
|
Common fault problems of Omron relays
1. Do not exceed the rated voltage of load current during the use of OMRON relay, because when the applied rated voltage is too large, it may cause a local short circuit between the cores of the OMRON relay coil and poor operation of the AC operation relay. And it may also cause a succession ...
|
|
What are the main items of Omron PLC overhaul?
1. Overhaul the power supply. It is possible to detect whether the voltage variation range is within the permissible ± 10% at the power terminal.
2. Working environment. Focus on checking whether the temperature, humidity, vibration, dust, interference, etc. meet the standard working environment.
3. Power supply for input and output. Available in the corresponding ...
|
|
Wiring method of Omron relays
Step 1: 13 and 14 of the contactor are the contacts of the contactor coil.
Step 2: When the voltage is added to 13 and 14, the intermediate relay acts.
Step 3: 9, 5 normally open, 9, 1 normally closed, after adding voltage, relay action, 9, 5 normally closed, 9, 1 normally open.
Clause...
|
|
The application of Omron temperature uniformity technology in SEMI homogenizing developer
Process introduction
The gluing developer is a very important equipment for the lithography process section of chip making, which is used to realize the ultra-thin film of photoresist. It is divided into two steps: 1. Gluing process: the photoresist is dropped onto the surface of the wafer through the glue head, and the vacuum suction cup sucks the wafer and rotates at high speed for homogenization.
|
|
The Omron and BYD technical exchange meeting was held to explore the new future of intelligent automobile manufacturing
Recently, Omron Automation (China) Co., Ltd. (hereinafter referred to as "Omron") and BYD Co., Ltd. (hereinafter referred to as "BYD") successfully held a technical exchange meeting in Shenzhen. Omron industry and technical experts, BYD automobile, light rail, new energy, electronics ...
|
|
Parameter settings for Omron inverters
1. First of all, set the parameters of Omron inverter according to the rated voltage, rated frequency, rated power and other parameters of the motor;
2. Secondly, according to the actual operation of the motor, adjust the parameters of the Omron inverter to achieve the best operation effect;
3. Finally, ...
|
|
What are some common failures of Omron?
Common troubleshooting methods for Omron are as follows:
(1) Failure of peripheral circuit components
This kind of failure is more common in PLC maintenance, and it is generally a frequent occurrence in failures after a certain period of work. In the PLC control loop, if there is a component damage fault, the PLC control system ...
|
|
Omron Releases G7L-X PCB Power Relays with Higher Performance and Reliability
With the acceleration of global decarbonization, sustainable energy is increasingly becoming the focus of attention. At the same time, the sharp rise in global energy prices has further promoted the rapid growth of the residential photovoltaic market, and the market has begun to pay attention to the huge potential of photovoltaic power supply systems.
|
|
Routine maintenance methods of Omron relays
1. In the operation of Omron relay, if there is an abnormal sound or other abnormal conditions, the operation should be terminated first, and the skilled and professional repair staff should be notified to repair, and the operation can be resumed after the common fault is cleared.
2. In the whole process of maintenance, check the spring ...
|
|
Causes and solutions for E1 fault codes in Omron electronic sphygmomanometers
The E1 fault code usually appears on the display of the blood pressure monitor and indicates that the inflation pressure is too high or too low. This failure can lead to inaccurate measurement results or even inability to complete the measurement.
Solution(s):
1. Check whether the cuff is worn correctly and whether it is properly tightened.
...
|
|
Introduction to the application of Omron micro switches
About installation
When installing, disassembling, wiring, and maintaining and inspecting the Omron switching power switch, please try to carry out the switching power supply with the switching power supply OFF. Otherwise, there is a high risk of electric shock or burn damage.
About wiring work
Please do not switch on the power ...
|
|
Omron CP1 series PLC interrupt classification
1. I/O direct interrupt, which is the change of interrupt input from the built-in input unit on the CPU rack (0→1; 1→0).
2. Counting interrupt, the built-in input pulse of the CPU unit of the PLC is counted, and the interrupt is executed when the count reaches the set value.
...
|
|