Circuit Splash

H-bridge is the circuit in which voltage can be applied across the load, in either of the direction. These circuits are frequently used in robotics, especially for the DC motor. Voltage can be applied in either direction to rotate the DC motor forward or backward

OPA462 High-Voltage (180-V), High-Current (30-mA) Operational Amplifier

We can convert the High voltage AC into Low voltage DC without using the Transformer. This is known as Transformerless power supply. The main component of a Transformerless power supply is Voltage dropping capacitor or X-rated capacitor, which are specially designed for AC mains. This X rated capacitor is connected in series of Phase line of AC, to drop the voltage.

Most standard appliances are designed to accept only AC (alternating current) voltages because that's how electricity is supplied from the grid. In order to run an electronic device from a DC (direct current) source you obviously need to transform it into AC.

The Schmitt-trigger is a circuit which creates hystereses and which is useful in digitizing an analog signal into a digital signal of either high or low. The hystereses makes inputs more immune to noise. The input must surpass a low threshold voltage before the output goes low, and likewise the input must exceed a high level threshold before the output goes high.

The 3.7V 1800mAh iI-po rechargeable battery is a high-capacity and high-output power source suitable for portable electronic devices. Its Li-po chemistry offers a high energy density and low self-discharge rate, making it a lightweight and environmentally friendly option that can be recharged multiple times

It's often necessary to power a low voltage circuit such as a microcontroller with HV AC line current. For example, most fire alarms are powered this way. In these situations, a transformer is both bulky and expensive especially if the device is a consumer product.

The ST10R165 is a new derivative of the SGS-THOMSON ST10 family of full fea-tured single-chip CMOS microcontrollers. It combines high CPU performance (up to10 million instructions per second) with high peripheral functionality and enhancedIO-capabilities

4-level LED lamp display power, not working state intelligent automatic shutdown;
The built-in lithium battery protection IC, over-current, overpressure, under-voltage protection;
Dual USB output ports.