Arbitrary function generator

Ongoing

STD Arbitrary function generator

License: Public Domain

Mode:

Editors' pick

Update time： 2023-04-01 20:53:21

Creation time： 2023-02-20 15:57:48

Description

This a modified version of an instructables by user Wolf2018:

I added a 1K potentiometer in series with two 220ohm resistors in order to add offset to the function generator.

one end is connected to +12v and the other end to -12v.

the middle poimt of potemtiometer is connected between R30 and C12.

Note that this will not work well with bigger loads and very high frequentcies :(

Design Drawing

schematic diagram

（ 1 / ）

PCB

（ 1 / ）

The preview image was not generated, please save it again in the editor.

BOM

ID	Name	Designator	Footprint	Quantity
1	220uF	C1,C2,C3,C4	CAP-SMD_BD10.0-L10.3-W10.3-LS11.0-FD	4
2	100nF	C5,C6,C8,C9,C10,C11,C14,C15,C16	C1206	9
3	1uF	C7,C12	R2512	2
4	3.3pF	C13	C1206	1
5	100uF	C17	R2512	1
6	10uF	C18,C19	CAP-SMD_BD4.0-L4.3-W4.3-FD	2
7	1N4148W-2	D1,D2	SOD-123_L2.8-W1.8-LS3.7-RD	2
8	JUMPER-5-PINS	JP1,JP6	CONNECTOR-5-MALE-FEMALE	2
9	JUMPER-4-PINS	JP2,JP5,JP7	CONNECTOR-4-MALE-FEMALE	3
10	JUMPER-2-PINS	JP3,JP4,JP9,JP10,JP11,JP12	CONNECTOR-2-MALE-FEMALE	6
11	JUMPER-3-pin	JP8	1X03	1
12	NTE2634	Q1	TO-126_L7.8-W2.7-P2.30-L	1
13	NTE2633	Q2	TO-126F-3L_L8.0-W3.2-P2.30-L	1
14	1kΩ	R1,R2,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,R13,R14,R15,R16,R17,R18,R19,R20,R21,R22,R23,R24,R25,R40,R41,R42,R43	R1206	29
15	680	R26,R27	R1206	2
16	10K	R28,R29	R1206	2
17	47Ω	R30,R39	R2010	2
18	100	R34	RES-ADJ_3296W	1
19	1kΩ	R35,R36	1206	2
20	3.3Ω	R37,R38	R2512	2
21	Pico	U1	RPI_PICO_SMD_TH	1
22	TY500-5.0-03P-14-00AH	U2	CONN-TH_3P-P5.00_TOPONELEC_TY500-5.0-03P-14-00AH	1
23	L7812ABV	U3	TO-220-3_L10.0-W4.5-P2.54-L	1
24	L7912CV	U4	TO-220-3_L10.0-W4.5-P2.54-L	1
25	L7805ACV-DG	U5	TO-220-3_L10.0-W4.5-P2.54-L	1
26	1N5822-SS34	U7,U8,U9,U10	SMB_L4.3-W3.6-LS5.4-RD	4
27	L7905CV-DG	U11	TO-220-3_L10.0-W4.5-P2.54-L	1
28	AD8055ANZ	U12	PDIP-8_L10.2-W6.5-P2.54-LS7.6-BL	1