Section 03 트랜지스터를 ... - elearning.kocw.net

1 15/45 Section 03 ON/OFF LED ON/OFF LED ([ 5-6]) 16/45 Section 03 IC IB hFE IB 0[A] IC 0[A], , IB IC 17/45 Section 03 / ON/OFF / ON/OFF 18/45 Section 03 ATmega128 I/O ON/OFF [ 5-6(a)] ON PC0 HIGH RB ON IC [ 5-6(a)] OFF PC0 LOW 0[A], OFF 19/45 Section 04 ATmega128 NPN ATmega128 LED 4 PC0 HIGH Q1 ON LED LOW Q1 OFF LED [ NPN ] NPN 2N2222A , (Philips datasheet ) 20/45 IC = 75[mA] VCE(Sat)

2 = [V], LED [V] IB = 6[mA] , 20[ ] = [V] 77[mA] Section 04 ATmega128 21/45 Section 05 I/O , COM (Normal Close) , (Normal Open) [ JS1F-5V [ : NAIS JS Relay (c)]] 22/45 Section 05 I/O JS1F-5V 5[V] 72[mA] I/O 23/45 Section 05 I/O PG1 PG2 24/45 LED LED ON/OFF Section 05 I/O 25/45 5-5 ( / 5-5)

3 Section 05 I/O 26/45 Section 06 GNU gcc CPU , < > include F_CPU Project Configuration Options General Frequency < > #define F_CPU 16000000UL , CPU 16 MHz 27/45 Section 06 [ ] 28/45 Section 06 , [ ] 29/45 Section 07 1 1 30/45 Section 07 1 7- LED #include < > _delay_ms( ) _delay_ms(1000) 1000[msec] 1 _delay_ms()

4 F_CPU #define F_CPU 16000000UL , Frequency #define F_CPU 16000000UL sec % 10 sec 10 , 0 ~ 9 31/45 _delay_ms( ) 1 Section 07 1 32/45 Section 08 33/45 Section 08 before PD0 // // 34/45 Section 08 35/45 Section 08 , 36/45 Section 09 H- DC DC H- H.

5 A, D B, C : A, D B, C A, B, C, D ( ) A, B C, D [ H - ] 37/45 H- Section 09 H- DC [ H- DC ] 38/45 470[ ] 50 450[mA] DC [V], 450[mA] DC Section 09 H- DC 39/45 DC , [ 5-21] DC A, B, C, D Section 09 H- DC AC, BD H- [ 5-22] DC AC, BD 40/45 AC BD ON.

6 AC, BD HIGH LOW Section 09 H- DC 41/45 Section 10 H- DC H- H- , , DC , 7- LED ([ 5-21]) 42/45 Section 10 H- DC // number 1 1 // number 1 3 // number 1 , , 43/45 Section 10 H- DC 7- LED H- DC 44/45 Section 10 H- DC 5-10 H- DC ( / 5-10) IT CookBook, AVR ATmega128