Application of SF404 audio power amplifier drive circuit

The SF404 audio power amplifier driver circuit is a product of Shanghai Radio 7 Factory. It can be equipped with a pair of power tubes and a small number of RC components. It can be an OTL or BTL power amplifier. The power amplifier composed of this circuit has a wide power supply voltage range and output. power

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SF404 as OTL power amplifier circuit diagram

SF404 as OCL power amplifier circuit diagram

The ground wire of SF404 should be connected to

The Internet of Things (IoT) is the network of physical devices, vehicles, batteries, home Appliances, and other items embedded with electronics, software, sensors, actuators, and connectivity which enables these things to connect and exchange data, creating opportunities for more direct integration of the physical world into computer-based systems, resulting in efficiency improvements, economic benefits, and reduced human exertions.
Our Battery Remote Monitor with IoT is direct integration of the battery restore solution and device  into computer-based battery monitoring system which combines wireless communication with patented, field-proven battery monitor and analysis technology. It not only has the ability to restore battery, but also has the ability to monitor battery's State-Of-Health(SOH) in real time.
Uptime is the most basic requirements in nowadays connected to all things in the world. Power systems rely on batteries to provide critical backup energy and power in sudden affairs. When power supply of normal grid is lost suddenly, the backup power systems must perform. Without proper monitoring of the back up power system status whether safe or not, there is a irreparable risk of catastrophic loss for Hospital institution, Telecommunication cost, financial organizations and even the army suddenly lost the war, etc.
How our Battery Remote Monitor IOT works? it is comprised of 3 base hardware devices and 1 software operation system. The monitor parts connected with batteries pack and reliably reports battery State-Of-Health(SOH) to the software platform.  Wirelessly enables these monitoring hardware to connect and exchange data with users in working to control the batteries status in real time.Battery Remote Monitor
Our family members of Battery Remote Monitor IoT are Battery Smart Pulse Protector with BlueTooth and GPS tracking management such as Car or Truck GPS System Telecom Base Site Battery Protector System with wireless monitor, Battery Smart Remote Monitoring system and Battery Anti-Theft GPS System, etc.


Battery Remote Monitor IOT

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Shenzhen Daceen Technology Co., Ltd. , http://www.daceen-sz.com

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