From: Ben Harris Date: Mon, 10 Dec 2018 00:25:07 +0000 (+0000) Subject: Updates; better Web page. X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=fd6006c170c2c4dcea54e1fdc34e40fca51cae29;p=clunkpi.git Updates; better Web page. --- diff --git a/clunkpi-1.0.0.zip b/clunkpi-1.0.0.zip new file mode 100644 index 0000000..3f970ca Binary files /dev/null and b/clunkpi-1.0.0.zip differ diff --git a/clunkpi.sch b/clunkpi.sch index 0259ed8..8ec396d 100644 --- a/clunkpi.sch +++ b/clunkpi.sch @@ -18,8 +18,8 @@ $Comp L Device:R R1 U 1 1 5BDE2F8C P 3450 2350 -F 0 "R1" V 3530 2350 50 0000 C CNN -F 1 "5R1" V 3450 2350 50 0000 C CNN +F 0 "R1" H 3520 2396 50 0000 L CNN +F 1 "5R1 1% 600mW" H 3520 2305 50 0000 L CNN F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 3380 2350 50 0001 C CNN F 3 "" H 3450 2350 50 0001 C CNN 1 3450 2350 @@ -29,8 +29,8 @@ $Comp L Device:D D1 U 1 1 5BDE32C6 P 3100 1350 -F 0 "D1" H 3100 1450 50 0000 C CNN -F 1 "D" H 3100 1250 50 0000 C CNN +F 0 "D1" V 3054 1429 50 0000 L CNN +F 1 "D" V 3145 1429 50 0000 L CNN F 2 "Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal" H 3100 1350 50 0001 C CNN F 3 "" H 3100 1350 50 0001 C CNN 1 3100 1350 @@ -40,8 +40,8 @@ $Comp L Reference_Voltage:TL431LP U1 U 1 1 5BE0E098 P 2750 2200 -F 0 "U1" H 2750 2300 50 0000 C CNN -F 1 "TLV431" H 2750 2100 50 0000 C CNN +F 0 "U1" V 2796 2130 50 0000 R CNN +F 1 "TLV431" V 2705 2130 50 0000 R CNN F 2 "Package_TO_SOT_THT:TO-92_Inline_Horizontal2" H 2750 2200 50 0001 C CNN F 3 "" H 2750 2200 50 0001 C CNN 1 2750 2200 @@ -51,8 +51,8 @@ $Comp L Device:Q_NPN_BCE Q1 U 1 1 5BE0F26D P 3350 1900 -F 0 "Q1" H 3550 1950 50 0000 L CNN -F 1 "2SC6144SG" H 3550 1850 50 0000 L CNN +F 0 "Q1" H 3541 1946 50 0000 L CNN +F 1 "2SC6144SG" H 3541 1855 50 0000 L CNN F 2 "Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown" H 3550 2000 50 0001 C CNN F 3 "" H 3350 1900 50 0001 C CNN 1 3350 1900 @@ -62,8 +62,8 @@ $Comp L Device:R R2 U 1 1 5BE0FB41 P 2750 1750 -F 0 "R2" V 2830 1750 50 0000 C CNN -F 1 "390R" V 2750 1750 50 0000 C CNN +F 0 "R2" H 2820 1796 50 0000 L CNN +F 1 "390R" H 2820 1705 50 0000 L CNN F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 2680 1750 50 0001 C CNN F 3 "" H 2750 1750 50 0001 C CNN 1 2750 1750 @@ -73,8 +73,8 @@ $Comp L Connector_Generic:Conn_02x13_Odd_Even J1 U 1 1 5BE4D61E P 1350 1800 -F 0 "J1" H 1400 2500 50 0000 C CNN -F 1 "Raspberry PI GPIO" H 1400 1100 50 0000 C CNN +F 0 "J1" H 1400 2617 50 0000 C CNN +F 1 "Raspberry PI GPIO" H 1400 2526 50 0000 C CNN F 2 "Connector_PinSocket_2.54mm:PinSocket_2x13_P2.54mm_Vertical" H 1350 1800 50 0001 C CNN F 3 "" H 1350 1800 50 0001 C CNN 1 1350 1800 diff --git a/clunkpi.svg b/clunkpi.svg new file mode 100644 index 0000000..c810e7e --- /dev/null +++ b/clunkpi.svg @@ -0,0 +1,1916 @@ + + + + + + image/svg+xml + + SVG Picture created as clunkpi.svg date 2018/12/08 22:48:00 + + + + + + SVG Picture created as clunkpi.svg date 2018/12/08 22:48:00 + Picture generated by Eeschema-SVG + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/index.xhtml b/index.xhtml index f582a05..1085ae1 100644 --- a/index.xhtml +++ b/index.xhtml @@ -27,14 +27,17 @@ the drive transistor.

Design files

I designed ClunkPi using - KiCad. The KiCad source - files, along with the Gerber files for PCB manufacture, are + KiCad. The + KiCad source files, + along with the Gerber files for PCB manufacture, are available for download.

Circuit description

+

The circuit is a simple current source controlled by a shunt voltage regulator. U1 and R2 control the base current in Q1 to achieve 1.24 V across R1. D1 suppresses any voltage spike - caused by the inductance of the clock coil.

+ caused by the inductance of the clock coil. The whole thing + turns off when the GPIO line goes low.

Use

Plug the board into a Raspberry Pi with the square solder pad connected to pin 1 of the GPIO connector. Connect the clock @@ -48,7 +51,7 @@ Farnell 2677321Silicon diode, 50 V, 1 A J1Amphenol FCI76342-313LF Farnell 109798526-way pin socket - Q1 + Q1{ ON Semiconductor 2SC6144SG Farnell 2533297High-gain power transistor