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SG3525 Pulse Width Modulation Controller IC DIP-16 Package
The SG3525A pulse width modulator control circuit offers improved performance and lower external parts count when implemented for controlling all types of switching power supplies. The on?chip +5.1 V reference is trimmed to 1% and the error amplifier has an input common?mode voltage range that includes the reference voltage, thus eliminating the need for external divider resistors. A sync input to the oscillator enables multiple units to be slaved or a single unit to be synchronized to an external system clock. A wide range of deadtime can be programmed by a single resistor connected between the CT and Discharge pins. This device also features built?in soft?start circuitry, requiring only an external timing capacitor. A shutdown pin controls both the soft?start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft?start recycle with longer shutdown commands. The under voltage lockout inhibits the outputs and the changing of the soft?start capacitor when VCC is below nominal. The output stages are totem?pole design capable of sinking and sourcing in excess of 200 mA. The output stage of the SG3525A features NOR logic resulting in a low output for an off?state.
Sharp Edge Scraper 2 Inches for 3D Printers
Si5351A I2C 8 Khz 160 Mhz Clock Generator Breakout Board Module
The Si5351A clock generator is an I2C controller clock generator. It uses the onboard precision clock to drive multiple PLLs and clock dividers using I2C instructions. By setting up the PLL and dividers you can create precise and arbitrary frequencies. There are three independent outputs, and each one can have a different frequency. Outputs are 3Vpp, either through a breadboard-friendly header or, for RF work, an optional SMA connector.
Side Mounted Water Level Float Switch 55mm
A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. It is neither a complicated circuit nor does it provide power. It is a simple structure, easy to use level control device; furthermore, this switch has a mechanical switch than those of the average small sized switches.
SIM800A GSM GPRS Module
Sim800C GPRS/GSM Shield with Antenna
The Sim800C GPRS/GSM Shield with Antenna provides you with a way to use the GSM phone network to receive data from a remote location and it is compatible with all boards which have the same form factor (and pinout) as a standard Arduino Board. This shield can also be applied to DIY phones for calling, receiving and sending messages, making GPS trackers or other applications like Smart home, etc.
SIM800C GSM GPRS Module
SIM800L GPRS GSM Module Micro SIM Card Core Board Quad-band TTL Serial Port
SIM800L V2.0 5V Wireless GSM GPRS MODULE Quad-Band with Antenna
SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna
SIM900A Modem is built with Dual Band GSM based SIM900A modem from SIMCOM. It works on frequencies 900MHz. SIM900A can search these two bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from 1200-115200 through AT command. SIM900A is an ultra compact and wireless module. The Modem is coming interface, which allows you connect PC as well as microcontroller with RS232 Chip(MAX232). It is suitable for SMS, Voice as well as DATA transfer application in M2M interface. The onboard Regulated Power supply allows you to connect wide range unregulated power supply. Using this modem, you can make audio calls, SMS, Read SMS, attend the incoming calls and ect. through simple AT commands. This is a complete GSM module in a SMT type and made with a very powerful single-chip, allowing you to benefit from small dimensions. SIM 900A GSM Modem with serial and TTL outputs.
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