Published:2011/8/10 3:53:00 Author:nelly | Keyword: pulse, signal generator
As shown in the figure, it is a practical pulse signal generator with adjustable duty cycle. The pulse frequency generator circuit is composed of A1 and some peripheral devices, it connects three different capacitors which have three different frequency measuring range, RP1 is used to accurately adjust the frequency. The modulation signal generator circuit consists of A3 and some peripheral devices, it also has three kinds of measuring range, RP2 is used to accurately adjust the frequency signal. RP3 is used to the gain adjust of modulation signal. RP4 controls the duty cycle.
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Published:2011/8/17 20:35:00 Author: | Keyword: Reverse phase, dual triangle wave, generator
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Published:2011/8/11 11:25:00 Author:leo | Keyword: Switch, DC-DC boosting convertor
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Published:2011/8/14 7:19:00 Author:leo | Keyword: Classic applying circuit, setting up switch, DC-DC convertor
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Published:2011/8/14 7:24:00 Author:leo | Keyword: Classic applying circuit, setting up switch, DC-DC convertor
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Published:2011/8/14 7:22:00 Author:leo | Keyword: DC-DC convertor, setting up
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Published:2011/8/14 7:25:00 Author:leo | Keyword: Scanning, generator
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Published:2011/8/17 20:33:00 Author: | Keyword: Oblique wave, generator
The oblique wave generator circuit is shown in the picture. It uses two capacitors to finish charging and discharging, which is C2 (connected to pin 6) and C1 (connected to pin 7). The ratio of capability of these two capacitors is 1000:1. When the charging time is shorter than discharging time, it generates a wave whose rising time is 1000 times of lowering time, which is actually the signal of saw wave. (View)
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Published:2011/8/17 20:23:00 Author: | Keyword: Hartley circuit
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Published:2011/8/14 7:39:00 Author:leo | Keyword: Classic Cyle circuit
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Published:2011/8/17 20:20:00 Author: | Keyword: Voltage regulator, power supply monitor, pins introduction and main features, power supply monitoring circuit
TA8505 power supply monitoring circuit When power supply is connected, cut off or voltage changes suddenly, the monitoring circuit will protect the circuit. Its operating voltage is from 1.8 V to 36 V with the output current of 30mA. It permits you set the test voltage or back-off voltage, which can use outer restart signal to carry out restart function. It has a power consumption of 600mW and the work temperature is from -40oC to +85oC. (View)
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Published:2011/8/14 7:14:00 Author:leo | Keyword: Frequency divider, rate
The frequency divider is formed by two CD4017 and dual input port. It can expand the frequency rate to 2 to 99 through different combinationsand connection, which is shown as following: (View)
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Published:2011/8/11 11:08:00 Author:leo | Keyword: Constant current, power supply
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Published:2011/8/14 7:17:00 Author:leo | Keyword: Frequency lock, indicator
It can design a frequency lock indicator based the output features of two phase compatators of the lock circuit under the condition of locking frequency. (View)
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Published:2011/8/11 11:12:00 Author:leo | Keyword: Switch, constant current, power supply
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Published:2011/8/11 11:10:00 Author:leo | Keyword: Low drift, contant current, power supply
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Published:2011/8/14 7:31:00 Author:leo | Keyword: Multi-wave shape, generator
This wave generator can output square wave, sine wave and divergent wave.
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Published:2011/8/14 7:27:00 Author:leo | Keyword: Sweeping signal, generator
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Published:2011/8/17 20:37:00 Author: | Keyword: Impulse spreading circuit, gatecircuits
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Published:2011/8/11 11:15:00 Author:leo | Keyword: Reversible feature, DC-DC convetor
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