MicroRing - Revision history

Gaess: /* Board */

2013-11-17T16:25:33Z

Board

← Older revision		Revision as of 17:25, 17 November 2013
Line 12:		Line 12:
	This version uses standard trough hole parts but with all of them soldered in pseudo-SMD on the boards' top layer. No drilling of PCBs needed and very easy soldering makes preparing workshops fast and relaxing. The picture below shows the placement of parts and the second picture is the mask for etching the boards.		This version uses standard trough hole parts but with all of them soldered in pseudo-SMD on the boards' top layer. No drilling of PCBs needed and very easy soldering makes preparing workshops fast and relaxing. The picture below shows the placement of parts and the second picture is the mask for etching the boards.

	[[File:realMicroRingTop.png\|~~500px~~]]		[[File:realMicroRingTop.png\|250px]]

	[[File:realMicroRingMask.png\|500px]]		[[File:realMicroRingMask.png\|500px]]


	== Parts ==		== Parts ==

Gaess at 16:22, 17 November 2013

2013-11-17T16:22:57Z

@@ Line 4: / Line 4: @@
 This circuit only needs four NAND-Gates - exactly what a 4093 IC provides. Adding two potis, two capacitors, six resistors (all of the same size) and a diode is all this very simple circuit needs to produce a wide range of interesting sounds!
-= Parts =
+[[File:realMicroRingSchematics.png|500px]]
 * 1* 4093 IC
-* 6* Resistors with same value in kOhm range (I've used 2.2k in the prototype, because i've just had 5 at hand)
+* 6* Resistors with same value in kOhm range (I've used 2.2k in the prototype, because i've just had 5 at hand, could be up to about 15k)
 * 3* capacitors around 100nF (can also be 80, 120, 150, you don't have to use up all 100nF from the storage at any price ;-) )
 * 2* Potentiometers in kOhm range (100k in the Prototype, also not critical)
@@ Line 14: / Line 27: @@
 * Battery
 * Piezo Speaker or Jack connector or both

Gaess: /* Concept */

2013-11-17T16:19:29Z

Concept

← Older revision		Revision as of 17:19, 17 November 2013
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	= Concept =		= Concept =
	The ~~Idea~~ is ~~to generate two squarewaves with~~ two NAND-~~Gatters~~ of a ~~4093 IC and use~~ the ~~other~~ two ~~NAND as an~~ XOR stage. ~~The~~ two ~~waveforms are then send as inputs~~ to the XOR and ~~we have a Ring Modulation~~. ~~Best~~ of it, ~~it's all on just one~~ 4093. ~~The additional parts are also~~ very ~~easy.~~		Based on an idea by Uwe Schüler at HomeMade Camp 2013. The RingModulator is a XOR-Gate built from two NAND-Gates (IC2B and IC2C on the schematics). For the case of at least one Square-Wave on the two input lines, a XOR-operation on the two signals equals a mulitplication of the two signals. For this special case, our XOR stage performs a ring modulation.
			We can now feed two square waves to the two input lines of the XOR-stage. These are produced with one NAND-gate for each wave (IC2A and IC2D). The output of the NAND gate is fed back to one input over a potentiometer (R3, R5) and with a capacitor to ground (C1, C2). The other input is attached to VCC.
			This circuit only needs four NAND-Gates - exactly what a 4093 IC provides. Adding two potis, two capacitors, six resistors (all of the same size) and a diode is all this very simple circuit needs to produce a wide range of interesting sounds!

	= Parts =		= Parts =

Gaess: /* Schematics */

2013-08-19T20:27:33Z

Schematics

← Older revision		Revision as of 21:27, 19 August 2013
Line 14:		Line 14:

	= Schematics =		= Schematics =
	The ingenious part of the schematics is the XOR made of two NAND (that's Uwe Schülers idea) over IC2C and IC2B and one Resistor to VCC on first NAND and another resistor to GND on the second NAND. The other two NANDs just create rectangles that you can tune with the potis. You can attach a Piezo or a jack connector on the pins P$1 and P$3 on the right. As Vcc anything from 3 - 15 V should work. I've just tried 9V so far, though.		The ingenious part of the schematics is the XOR made of two NAND (that's Uwe Schülers idea) over IC2C and IC2B and one Resistor to VCC on first NAND and another resistor to GND on the second NAND. The Schematics here are not yet showing the circuit as it should be for an XOR. So it is not a proper Ring-Modulation. A "correct" version will follow. But because of the nice sound of this circuit, the microRing will remain as it is.
			The other two NANDs just create rectangles that you can tune with the potis. The first Oscillator also triggers the second. You can attach a Piezo or a jack connector on the pins P$1 and P$3 on the right. As Vcc anything from 3 - 15 V should work. I've just tried 9V so far, though.

	[[File:microRingSchematics.png\|500px]]		[[File:microRingSchematics.png\|500px]]

Gaess: /* Parts */

2013-08-15T19:44:31Z

Parts

← Older revision		Revision as of 20:44, 15 August 2013
Line 8:		Line 8:
	* 3* capacitors around 100nF (can also be 80, 120, 150, you don't have to use up all 100nF from the storage at any price ;-) )		* 3* capacitors around 100nF (can also be 80, 120, 150, you don't have to use up all 100nF from the storage at any price ;-) )
	* 2* Potentiometers in kOhm range (100k in the Prototype, also not critical)		* 2* Potentiometers in kOhm range (100k in the Prototype, also not critical)
			* 1* Diode (just a normal one, doesn't matter much)
	* 1* Battery Clip		* 1* Battery Clip
	* Battery		* Battery

Gaess: /* Board */

2013-08-15T19:40:04Z

Board

← Older revision		Revision as of 20:40, 15 August 2013
Line 18:		Line 18:

	= Board =		= Board =

			[[File:microRingBoardPartsv02.png]]


	So far, only a through hole board exists. But I'm working on the pseudo SMD variant (no more drilling!).		So far, only a through hole board exists. But I'm working on the pseudo SMD variant (no more drilling!).

Gaess: Created page with "= Concept = The Idea is to generate two squarewaves with two NAND-Gatters of a 4093 IC and use the other two NAND as an XOR stage. The two waveforms are then send as inputs to th..."

2013-08-15T19:35:11Z

Created page with "= Concept = The Idea is to generate two squarewaves with two NAND-Gatters of a 4093 IC and use the other two NAND as an XOR stage. The two waveforms are then send as inputs to th..."

New page

= Concept =
The Idea is to generate two squarewaves with two NAND-Gatters of a 4093 IC and use the other two NAND as an XOR stage. The two waveforms are then send as inputs to the XOR and we have a Ring Modulation. Best of it, it's all on just one 4093. The additional parts are also very easy.

= Parts =

* 1* 4093 IC
* 6* Resistors with same value in kOhm range (I've used 2.2k in the prototype, because i've just had 5 at hand)
* 3* capacitors around 100nF (can also be 80, 120, 150, you don't have to use up all 100nF from the storage at any price ;-) )
* 2* Potentiometers in kOhm range (100k in the Prototype, also not critical)
* 1* Battery Clip
* Battery
* Piezo Speaker or Jack connector or both

= Schematics =
The ingenious part of the schematics is the XOR made of two NAND (that's Uwe Schülers idea) over IC2C and IC2B and one Resistor to VCC on first NAND and another resistor to GND on the second NAND. The other two NANDs just create rectangles that you can tune with the potis. You can attach a Piezo or a jack connector on the pins P$1 and P$3 on the right. As Vcc anything from 3 - 15 V should work. I've just tried 9V so far, though.

[[File:microRingSchematics.png|500px]]

= Board =

So far, only a through hole board exists. But I'm working on the pseudo SMD variant (no more drilling!).

Mask (bottom):
[[File:microRingBoardv02.pdf]]

Parts (top):
[[File:microRingBoardPartsv02.pdf]]

= Demo Video =
{{#widget:Vimeo|id=72336145}}