User guide

ManualsBrandsDoepfer ManualsAudioA-175 Dual Voltage Inverter

doepfer

System A - 100

Dual Voltage Inverter

A-175

1. Introduction

Module A-175 (Dual Voltage Inverter) is exactly what

it says it is: two identical inverters, which will take a

voltage and output it in an inverted form - so that an

input of +5 V will be output as -5 V, an input of -2 V will

be output as +2 V, and so on.

Two

LEDs

give a visual indication of the (positive or

negative) output signal.

A-175

VOLT. INV.

Inv.

Out

Inv.

Out

Summary of content (6 pages)

PAGE 1
System A - 100 doepfer Dual Voltage Inverter A-175 1. Introduction A-175 VOLT. INV. In In Inv. Out Module A-175 (Dual Voltage Inverter) is exactly what it says it is: two identical inverters, which will take a voltage and output it in an inverted form - so that an input of +5 V will be output as -5 V, an input of -2 V will be output as +2 V, and so on. Two LEDs give a visual indication of the (positive or negative) output signal. In In Inv.
PAGE 2
A-175 Dual Voltage Inverter System A - 100 doepfer Indicators 2. Overview 1 LEDs : A-175 Visual indicators of the state of the output voltage (positive or negative) VOLT. INV. In In- / Outputs In Inv. Out Ctr. - + In In Inv. Out Ctr. 2 - + ➀ ! In : Voltage input, linked to input " " In : Voltage input, linked to input ! § Inv.
PAGE 3
doepfer System A - 100 Dual Voltage Inverter A-175 3. Indicators 4. In- / Outputs 1 LEDs ! In Visual indicators of the state of the output voltage (positive or negative) at socket §. Sockets ! and " are the internally linked inputs for the A-175. This is where you patch in the signal you want to invert. P • " In Since in practice you very often need the original signal as well as its inversion (see user examples), you can use the second socket as a mini-multiple. § Inv.
PAGE 4
A-175 Dual Voltage Inverter System A - 100 5. User examples Panning Fig. 1 shows a typical patch to create Panning - the shifting of a sound’s position in the stereo picture. The input signal is simultaneously sent to two linear VCAs, whose outputs are sent one to the left (OutL) and one to the right (OutR) stereo channel. Both VCAs are being modulated by the same slow LFO.
PAGE 5
System A - 100 doepfer Dual Voltage Inverter A-175 CV VCO 1 VCA 1 VCO 1 CV VCO 2 A-175 CV 1 Gain > 0 VCO 2 Fig. 2: Mirroring a series of notes A-175 AM with control of timbre Fig. 3: AM with timbre control The example in Fig. 3 shows amplitude modulation with timbre control. P The frequencies of both the carrier VCO (VCO 1) and the modulator VCO (VCO 2) are in the audio range.
PAGE 6
A-175 Dual Voltage Inverter System A - 100 doepfer 6. Patch-Sheet The following diagrams of the module can help you recall your own Patches. They’re designed so that a complete 19” rack of modules will fit onto an A4 sheet of paper. Photocopy this page, and cut out the pictures of this and your other modules. You can then stick them onto another piece of paper, and create a diagram of your own system. A-175 A-175 VOLT. INV. VOLT. INV. VOLT. INV. In In In In In In Inv. Out Inv. Out Inv.