Published:2011/6/16 5:54:00 Author:Lucas | Keyword: Agricultural , automatical, water feeder
The agricultural automatical water feeder circuit is composed of the power supply circuit, water level detection control circuit and control implementation circuit, and the circuit is shown as the Figure 1. Power supply circuit is composed of the power switch S1, fuse FU, power transformer T, rectifier diode VD1 and filter capacitor Ct. Water level detection control circuit is composed of the water level detection electrodes A ~ C, resistors R1, R5 ~ R9, diodes VD3, VD6 transistor V4, capacitor C2 and control buttons S2, S3. Control implementation circuit is composed of the diodes VD2, VD4, VD5, resistors R2 ~ Rz +, transistors V1 ~ V3, light-emitting diode VL and relay K.
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Published:2011/6/16 5:51:00 Author:Lucas | Keyword: Agricultural , automatical , water feeder
The agricultural automatical water feeder circuit is composed of the power supply circuit and control circuit, and the circuit is shown as the Figure 1. Power supply circuit is composed of the power control button S1, the normally open contacts of relay K1, power transformer T, rectifier diodes VD1 ~ VD4, capacitors C3, C4, resistor M and power indicator LED VL. The control circuit is composed of the triggered button S2, resistors R1 ~ R3, transistors V1 ~ V3, diodes VD5, VD6, capacitors C1, C2 and relays K1, K2. RI ~ R4 select l/4W metal film resistors or carbon film resistors.
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Published:2011/6/14 11:33:00 Author:Borg | Keyword: linear stabilizer circuit, output voltage
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Published:2011/6/14 20:07:00 Author:Borg | Keyword: linear stable power supply, output
(a)uncontrollable (b)controllable (View)
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Published:2011/6/14 20:27:00 Author:Borg | Keyword: external, linear stabilizer
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Published:2011/6/14 20:30:00 Author:Borg | Keyword: external, linear stabilizer
(a)band over-current protection (b)non-band over-current protection (View)
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Published:2011/6/15 7:18:00 Author:Borg | Keyword: step-down, power supply
In the figure is the +5v stable output step-down switching power supply consisting of MAX639. MAX639 is an efficient step-down DC/AC converter. The input voltage ranges from 5.5V to 11.5V, the output voltage is +5v or adjustable, the output current is 100mA, the converting efficiency is over 90%, and it has the functions of low-voltage battery detection and ON/OFF mode control. (View)
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Published:2011/6/14 20:38:00 Author:Borg | Keyword: working polarity, external capacitors
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Published:2011/6/13 20:08:00 Author:Borg | Keyword: high-class, bias oscillator
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Published:2011/6/14 4:29:00 Author:Borg | Keyword: polarity inverting, power supply
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Published:2011/6/14 20:32:00 Author:Borg | Keyword: polarity, booster power supply
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Published:2011/6/13 20:23:00 Author:Borg | Keyword: gate voltage generator
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Published:2011/6/13 20:24:00 Author:Borg | Keyword: binary voltage generator
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Published:2011/6/14 20:35:00 Author:Borg | Keyword: inverting, 4-time, stable power supply
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Published:2011/6/15 7:32:00 Author:chopper | Keyword: switching power supply, thick film
STRG8656X is a mixed type switching power supply thick fil (View)
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Published:2011/6/15 7:32:00 Author:chopper | Keyword: switching power supply, thick film
STRF6656 is a mixed type switching power supply thick film integrated circuit (View)
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Published:2011/6/15 7:33:00 Author:chopper | Keyword: switching power supply, thick film
STRF6654 is a kind of mixed type switching power supply thick film integrated (View)
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Published:2011/6/15 2:11:00 Author:Borg | Keyword: DC stabilizer, power supply
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Published:2011/6/16 5:18:00 Author:Borg | Keyword: video amplifier, impedance
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Published:2011/6/16 5:23:00 Author:Borg | Keyword: pulse, double frequency
With a CD4013 and a 4-1-2 input terminal NOR gate CD4001, we can make a pulse doublefrequency circuit, whose circuit is shown in the figure.
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