DDS circuit generates precise PWM waveforms
#DDS
#PWM
#waveform generator
#precision
#frequency control
#signal generation
#digital synthesis
#timing
#microcontroller interface
#clock
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Ripples in the Ether
Tomas OK4BX presented an impressive slideshow on the DDS-driven MEPT that he and his father recently launched. W0EA showcased the schematic and PCB layout of the amplifier T/R switch, which is currently in the manufacturing process. Participants could switch between...
high frequency waveform generator
This circuit represents a waveform generator, which is highly beneficial for electronic experiments and design. It primarily generates sine wave oscillations, but the circuit can be modified to produce triangle or square wave functions. The circuit is based on a...
PWM controller with PIC18f2455
The use of pulse width modulation (PWM) is common for the use of controlling power to a particular electrical device. Motor speed control, LED contrast control, power supplies are some of the example usage of PWM. 18 series PIC always...
PWM - Pulse Width Modulation for DC Motor Speed and LED Brightness 2
To understand how the 74AC14 PWM circuit functions, it is essential to focus on the schematic section that includes the trimpot, diodes, capacitor, and the first inverter logic gate. Initially, when power is applied to the circuit, the capacitor is...
PWM circuit
An electric scooter and E-Bike PWM speed controller circuit has been constructed. However, the oscillator is not functioning as intended. The printed circuit board has been checked and is confirmed to be in good condition, including all resistors.
The electric scooter...
Pulse Width Modulators using LM339
The first example utilizes a standard op-amp oscillator circuit to produce a triangular waveform, which is then level-shifted and supplied to a comparator (e.g., LM339) to generate a PWM waveform. It is common for users to prefer using two comparators...
PWM v2.1 plans
Detailed plans to build devices for HHO, HOH, HOD, PWM pulse width modulators, and EFIE electronic fuel injection enhancers.
The schematic for constructing devices related to HHO (Hydrogen-Hydrogen-Oxygen) production, HOH (Water), HOD (Hydrogen-Oxygen-Diatomic), PWM (Pulse Width Modulation) controllers, and EFIE (Electronic...
Waveform-generator-stable-vco
In this circuit, a waveform generator is used as a stable voltage-controlled oscillator (VCO) in a Phase-Locked Loop (PLL).
The circuit utilizes a waveform generator configured as a voltage-controlled oscillator (VCO), which is a critical component in the design of a...
Motor Control circuit II
This circuit is 12 volt motors and lights well regulated. The scheme operates with PWM (Pulse Width Modulation). By IC1, a 555 is a square wave generated by a controllable duty cycle. This means that the width of the pulse...