 | This circuit, when put into the proper housing will turn itself into a general-purpose hand-held flashlight. Because of its small size and light weight (it use only 1 AA battery), this flashlight is still bright and handy enough for day to day application. |
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FK821 DC BOOST CONVERTER 3.3-5V. TO 12V. 100mA. |
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A boost converter (step-up converter) is a DC-to DC power converter with an output voltage greater than its input voltage. DC to DC converters are important in portable electronic devices such as cellular phones and laptop computers, which are supplied with power from batteries primarily.
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This circuit is will converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction.
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FK1317 POWER AMPLIFIER 1W. |
 | This is an economical mono amplifier an ideal for class room project. The FK1317 can be used with FK13XX IC OTP voice generator and other audio projects. |
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FK1318 5-ANIMAL VOICE (DUCK,HEN,PARROT,ROOSTER,ASIAN KOEL) |
 | The 5 animal voices of the FK1318 was programmed by using the IC OTP type (One-Time Programmable). This circuit can make louder sound by connecting with the amplifier FK1301. It is suitable for toy, novelty and entertainment applications. |
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FK1319 5-ANIMAL VOICE (FROG,HORSE,SHEEP,MONKEY,WOLF) |
| The 5 animal voices of the FK1319 was programmed by using the IC OTP type (One-Time Programmable). This circuit can make louder sound by connecting with the amplifier FK1301. It is suitable for toy, novelty and entertainment applications. |
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