PWM Sawtooth Square Wave / Sine Wave / Triangle Wave Signal Generator

The PWM signal generator module can output square wave / rail-shaped wave / triangle / sawtooth / sine wave signalÂ£Â¬ the frequency range of 10Hz~300KHzÂ£Â¬ adjustable duty cycle of 2%~98%. Adjustable output signal frequency wave crest arcÂ£Â¬ trough arcÂ£Â¬ rise timeÂ£Â¬ fall time and so on. Note: Adjust the capacity of C29 can be changedÂ£Â¬ the output pulse frequency variable range. Up to 300KHz output. Note: 1. About the output amplitude: sine and triangle waveÂ£Â¬ sawtooth minimum output amplitude is about 30% of the supply voltage peakÂ£Â¬ and PWMÂ£Â¬ square waveÂ£Â¬ square wave output amplitude is about 80% of the supply voltage peak. For example: 12V power supplyÂ£Â¬ then: the output amplitude sawtoothÂ£Â¬ sineÂ£Â¬ triangle wave is 4V-VPP (12V x 30%) or soÂ£Â¬ the output amplitude PWMÂ£Â¬ square waveÂ£Â¬ rectangular wave is 9.6V-VPP (12V x 80%) about. Output amplitude adjustment potentiometer adjustment range is: supply voltage 30%~80% VPP One thing to note is that if the gain adjustment potentiometer is too big or too small changeÂ£Â¬ it will output variant wave distortion. 2. About power supply voltage. Recommended operating voltage is 12~18VÂ£Â¬ so the effect will be better. But this module is to supply 10-30V can workÂ£Â¬ but must not exceed 30VÂ£Â¬ otherwise it will burn ICÂ£Â¬ if the voltage is below 10VÂ£Â¬ then the module will no wave output. 3. About current drive capability and supply currentÂ£Â¬ the output current drive capability of the output signal is about 10mAÂ£Â¬ power supply current can be as long as there are more than 30MA. 4. About output frequency. Frequency is determined by the board jumpers to implement segmentation oscillation capacitor switching frequency adjustment. External shocks capacitance C1Â£Â¬ C3Â£Â¬ C4Â£Â¬ C2Â£Â¬ C29 corresponding capacitance are: 100PFÂ£Â¬ 1NFÂ£Â¬ 10NFÂ£Â¬ 0.1UFÂ£Â¬ 1UF five bands of frequency adjustment rangeÂ£Â¬ adjacent frequency of 10 times. AlsoÂ£Â¬ if you need to get a high-frequency signal 80KHz~300KHzÂ£Â¬ to do the following: A. Department must jumper cable leads from the switching signal. B. external shocks capacitor to be replaced less than 100PFÂ£Â¬ the smaller the capacitanceÂ£Â¬ the higher the frequency. 5. About the output waveform adjustments. A. TriangleÂ£Â¬ (positive and negative) to adjust the sawtooth. B. sine adjusted. Jump sine jumper position. Adjustments along time potentiometer can change the slope of the sine wave is positive clockwise or counterclockwise direction. Adjusting frequency potentiometer can change the frequency of the sine wave. Adjust the curvature of the sine wave peaksÂ£Â¬ valleys radian sine wave can change potentiometer peaks and troughs radian radian shape. It should be noted that the function of the two potentiometers functions are adjusted too far in the exchange. That isÂ£Â¬ the peaks will become standard tune troughÂ£Â¬ the trough will become standard tune peaksÂ£Â¬ but are likely to affect the performance of wave. C.PWM. Square waveÂ£Â¬ rectangular wave adjustments. Jumper jump PWM. Square waveÂ£Â¬ rectangular wave position. Adjustments along time potentiometer can change the PWM. Duty cycle square waveÂ£Â¬ rectangular wave. Adjusting frequency potentiometer can change the PWM. Frequency square waveÂ£Â¬ rectangular wave. Accelerating wave potentiometer can be fine-tuned. Under normal circumstancesÂ£Â¬ you can not ignore.

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