Published:2011/5/9 22:53:00 Author:Rebekka | Keyword: Output current and output voltage , adjustable regulated power supply
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Published:2011/5/9 22:52:00 Author:Rebekka | Keyword: 2~37V adjustable regulated power supply circuit
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Published:2011/5/9 22:50:00 Author:Rebekka | Keyword: Tracking regulated power supply
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Published:2011/5/9 22:50:00 Author:Rebekka | Keyword: 0 to ±6.6V adjustable tracking regulated power supply
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Published:2011/5/9 22:48:00 Author:Rebekka | Keyword: ± 1OV tracking regulated power supply
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Published:2011/5/10 0:45:00 Author:Rebekka | Keyword: Constant and adjustable dual-use regulated power supply
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Published:2011/5/10 0:43:00 Author:Rebekka | Keyword: 10V 1A regulated power supply
10V 1A regulated power supply circuit composed of LM105 integrated voltage regulator and LM195 power transistor. (View)
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Published:2011/5/10 9:56:00 Author:Borg | Keyword: Intergrated Circuit, PC Dialing
HM91620B is an intergrated circuit of PC dialing which is used in all kinds of phones.
HM91620B is pinned in dual in-line packages with 22 pinnings, whose pin functions and data are listed in Table 1-1.
Table 1-1 pin functions and data of HM91620B (View)
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Published:2011/5/10 9:47:00 Author:Borg | Keyword: Intergrated Circuit, Dialing
HM91210 is an intergrated circuit of PC dialing which is used in all kinds of phones.
1.functions features
HM91210 contains sub-circuits of pulse/tone coupling with dialing circuits, key switch signal encoding, etc.
2. pin functions and relevent data
The pin functions and data of HM91210 are listed in Table 1.
Table 1-1. pin functions and relevent data of the HM91210 intergrated circuit (View)
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Published:2011/5/9 22:37:00 Author:Nicole | Keyword: laptop, battery, charger
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Published:2011/5/9 22:39:00 Author:Nicole | Keyword: Ericsson, telephone, battery, charger
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Published:2011/5/9 22:25:00 Author:Nicole | Keyword: telephone, charger, power supply
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Published:2011/5/9 22:22:00 Author:Nicole | Keyword: charger, beard clipper
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Published:2011/5/9 22:45:00 Author:Nicole | Keyword: lithium battery, linear charge, management IC
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Published:2011/5/10 1:02:00 Author:Nicole | Keyword: automatic charger
Relaxation oscillator is composed of unijunction transistors BT33、C3、W1、W2 and some components, the produced pulse singal is transported to control pole of SCR1 by isolating diode, the trigger conduction angle of SCR1 can be changed by adjusting W1's resistance, it also changes the changing current. Storage battery charge automatic protection circuit is composed of SCR2, relay J, W3, W4, D5 and some components, when the voltage on both sides of battery is charged to the upper limit value which is set by W3, W4, D5 turns on, SCR2 is triggered to turn on, LED2 displays, relay pulls in, J is switched to normally open, it cuts off SCR1's control pulse integrating, it stops charging to storage battey. K2 is the transfer switch of 12V, 24V changing batteries, as shown in the figure, it is in 12V gear.
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Published:2011/5/9 22:55:00 Author:Sharon | Keyword: VGA, Color Display, Power Supply
VGA Color Display NEC JC-2001VMA Power Supply Circuit is shown below:
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Published:2011/5/10 1:14:00 Author:Ecco | Keyword: Separately excited , switching , integrated , regulated power supply
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Published:2011/5/10 3:20:00 Author:Ecco | Keyword: multi-function , emergency , power supply
PCNT multi-function emergency power supply circuit diagram is shown as the chart.
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Published:2011/5/10 3:17:00 Author:Ecco | Keyword: 100VA , automatic , emergency , power supply
NB-1 100VA automatic emergency power supply circuit diagram is shown as the chart.
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Published:2011/5/10 3:20:00 Author:Ecco | Keyword: emergency , power supply
ND85 emergency power supply circuit diagram is shown as the chart.
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