Archive for the Category


Solar battery charger with overcharge protection

Wednesday, November 4th, 2009

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This circuit is formed maintain one’s position voltage from solar cell with , shunt regulator circuit. For protect voltage not too until much destroy battery. Because of something charger too much. The D2 be for protect current flow turn back from battery during nighttime. The circuit maintains one’s position current the few , for feed [...]

MCU Control Motor Speed and Direction

Thursday, July 16th, 2009

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This the DC motor controls circuit with a signal MCU. By can control DC Motor 24V can fine the speed of motor with pulse and timer (MCU). This circuit composes transistor and power mosfet (MBR1045). Then motor driver has been verying and still have the circuit changes the direction of motor Reverse [...]

Simple power down

Thursday, July 16th, 2009

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This circuit adds a power down function to analog I/O ports (for example, the AD7769 and AD7774). Moreover, the diodes ordinarily needed to protect the devices against power-supply missequencing can be
eliminated
In the circuit, MOSFETs Q1 and Q2 switch the +5- and +12-V supplies, respectively, in a sequence [...]