PWM power amplifier of Programmable analog signal (active/passive) got two national patents

Release time:2022-06-08 17:18:17  Number of views:661

   The patented DIN 1X1 ISO U(A)-P-D-L series products are new developed isolation transmitter of programmable analog signal to PWM pulse width modulation and high current control by Sunyuan Technology. It can isolate and convert 4-20mA/0-20mA/0-5V/0-10V and other analog signals output by sensors, instruments and transmitters into PWM pulse width modulation power amplification control signals, and realize PWM frequency programmable output .The product is embedded with MCU microcontroller AD input conversion control,the output control design is divided into MOS tube open-drain type (OD gate) passive PWM high current control output mode DIN 1X1 ISO U(A)-P-D-L1 series and active PWM voltage pulse width control output mode DIN 1X1 ISO U( A)-P-D-L2 series. The product adopts the standard DIN35 rail-mounted installation method, low cost, small size, easy to use, high reliability, and can be used for motor speed regulation, lighting dimming control, boiler temperature PWM precision control, etc. It is widely used in automobiles, ship drives, automation equipment, CNC machine tools, energy-saving and environmental protection projects, road tunnels and urban lighting energy-saving control and other fields.


   Sunyuan Technology is a high-tech enterprise from 2007 to 2022. the company takes "customer's success, our value" as its business philosophy, and in accordance with the requirements of the ISO 2008 quality and technology management system, we insist on improving, improving and innovating, continuously improving product quality, reducing production costs, expanding product application scope, and introducing new products.In order to adapt to the current situation of the rapid development of electronic information technology and meet the needs of customers for product research and development innovation and upgrading.Sunyuan Technology has more than 10 years of experience in the design, production and application of DC-DC converters, data acquisitions, isolation amplifiers, isolation transmitters, and display control instruments. The full range of products has more than 20 national patents and software copyrights. The company's professional engineer team has an absolute advantage over competitors in the same industry in terms of deeper understanding and design knowledge.Provide a large number of solutions for users who need to solve signal interference, signal load matching, ground wire isolation, power conversion, data acquisition, signal isolation, AD/DA conversion, etc. The raw materials used in each product of Sunyuan exceed the predetermined specifications to design and produce high-stability products, which ensure that the products show good performance during operation in various harsh environments.


   DIN 1X1 ISO U(A)-P-D-L1 series open-drain passive PWM high-current control output mode is mainly used in the receiving port of the load itself as an active receiving port. The receiving port is equipped with a pull-up voltage and a current-limiting resistor. The control occasions where the current connected to the transmitter is required to be in the sink power distribution mode. When the drain of the MOS tube is open, the current can reach 0~1A, and the output voltage amplitude of the PWM pulse width signal is determined by the external pull-up voltage. Products with open-drain passive PWM output can realize three isolation between the analog signal input terminal / PWM output terminal / auxiliary power supply 3000VDC.


   SunYuan DIN 1X1 ISO U(A)-P-D-L2 series active PWM voltage pulse width control output mode can be used to drive high-power passive loads directly , such as stepper motors and precision temperature-controlled heaters, etc. The drive current can reach 0- 1A, with strong load capacity.The amplitude of the PWM output voltage is determined by the power supply voltage of the module, so the product of this output mode can only realize the isolation of the analog signal input terminal / PWM output terminal and the auxiliary power supply. The auxiliary power supply and the PWM output terminal share the same ground. Users can use it according to their own site. You need to select the product corresponding to the output method.


   SunYuan DIN 1X1 ISO U(A)-P-D-L series products integrate multi-channel high isolation DC-DC power supply, analog signal isolation amplification and conversion circuit, programmable MCU, signal isolation control circuit, etc.It is especially suitable for AD conversion and isolation transmission of industrial field analog signals, as well as occasions where fieldbus, Ethernet Internet of Things, PLC/DCS host computer collects and analyzes multi-channel sensor signals.The high-efficiency DC-DC isolated distributed power supply integrated in the product supplies power to the internal input conditioning circuit, micro-MCU AD conversion circuit and output signal isolation circuit respectively.The SMD process structure and new technology isolation measures enable the device to achieve: 3000VDC isolation between analog signal input and auxiliary power supply and PWM signal output, and can meet the requirements of industrial-grade wide temperature, humidity and vibration on-site harsh working environment.


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