The design is primarily based on an analog integrator circuit. The circuit integrates (i.e., sums) the input-voltage signal over a defined period of time. Based on an op-amp, the ideal circuit is shown in Figure 3. The factor –(1/RC) is constant, so the resulting output is inverted and proportional to the sum of the integrated [...]
The circuit in the figure derives its power from a USB port and produces 5 and 3.3V supply rails for portable devices, such as digital cameras, MP3 players, and PDAs. The circuit allows the port to maintain communications while, for example, charging a lithium-ion battery. IC2 boosts the battery voltage, VBATT, to 5V, and IC3 [...]
AC to DC 90 Watt Switching Power Adaptor Circuit AC to DC switching power adaptor circuit with maximum output power of 90W. Switching power supply is built using a high voltage power switching regulator IC MC33374 and some other additional components. The MC33374 IC is a monolithic high voltage power switching regulators that are specially [...]
1000 Volt DC to DC Regulator Circuit Input voltage from high voltage DC DC converter is 12V AC at 800mA current and then converted to DC through a bridge rectifier Diode 1A. The voltage output of converter circuit can be adjusted in the range of 0-1000V DC. This high voltage DC DC converter uses the [...]
The ability advocate ambit is aimed to catechumen 12 VDC to 220 VAC and the action accepted as inverter. By inverting action will aftermath a 50W ability advocate that would accumulation altered baby appliances. The DC to AC inverters are broadly acclimated in rural electrification the crave AC ability which includes solar home systems, bloom [...]
Another method that helps program development besides a dot LED as the output device is a serial bit. With a serial transmission to a terminal emulator program, developer may then test program running easier than a dot LED. One of my circuit uses PIC16F84 having one bit for sending ascii character with “printf” function. The [...]
This is circuit for interfacing I/O keypad and LCD that can study in laboratory for student to experience interfacing basic I/O devices to the HCS12 microcontroller mounted on the CML12S-DP256 development board. The keypad that using in this circuit is a standard 4 X 4 matrix keypad with 4 rows and 4 columns. This is [...]
