====== Acoustic amplifier ======

[[https://www.htsresources.com/piezoelectric_amplifier_controller.php|Product page]]

Here are the design specs for making your own acoustic amplifiers. 

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Teensy amplifier board  {{ :bdev:piezo_dispenseramplifier_hts4_bom1.zip |}}

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			HTS Resources Piezo Dispenser Amplifier HTS4 PARTS LIST 05/17/17			
			Product Description: Single Channel Piezo Dispenser Amplifier Board			
		
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|Description|Ref|QTY|Mfg Supplier Part|Mfg Supplier|Cost ea.|Total|
|HTS4 Rev A|NA|1|PCB|PAD|25.00|25.00|
|Capacitor|A1|1|OPA454A/DDA|Texas Instuments/Digi-Key|6.38|6.38|
|Capacitor|C2|1|GRM21AR72A224KAC5K  (0.22uF 100V X7R 10%)|Murata/Digi-Key|0.15|0.15|
|Capacitor|C1|1|GRM21BR71H104KA01L (0.1uF 50V X7R 10%)|Murata/Digi-Key|0.05|0.05|						
|Resistor|R3|1|ERJ-6ENF2204V (0805 2.2M 1%)|Panasonic/Digi-Key|0.02|0.02|
|Resistor|R1|1|ERJ-6ENF4751V (0805 4.75K 1%)|Panasonic/Digi-Key|0.02|0.02|
|Resistor|R2|1|ERJ-6ENF1213V (0805 121k 1%)|Panasonic/Digi-Key|0.02|0.02|						
|Terminal Strip|TS4,5,6,7|4|TSW-114-23-L-S-LL|Samtec|0.83|3.32|
|Terminal Strip|TS2,3|2|TSW-105-23-L-S-LL|Samtec|0.34|0.68|
|Terminal Strip|TS1|1|TSW-106-23-L-S-LL|Samtec|0.39|0.39|						
|Test Point|NA|2|1249|Keystone/Digi-Key	0.14|0.28|										
|Microcontroller|U1|1|Teensy 3.2|Digi-Key|22.50|22.50|
					
	
				Total Parts plus mark up 	55.83	64.20	
				Assembly Labor & Test ($65/Hr)	0.50	32.50	
				TOTAL		96.70

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Power supply board {{ :bdev:piezo_dispenser_power_supply_hts3_bom1.zip |}}

{{ :bdev:powersuppy_brd.png?200 |}}

|Description|Ref|QTY|Mfg/Supplier|Part #|Mfg/Supplier|Cost ea.|Total|
|HTS3 Rev B|NA|1|PCB|PAD|45.00|45.00|
|Power Supply|NA|2|RS-15-48|Mean Well/ Arrow|12.40|24.80|
|Power Supply|NA|1|IRM-01-3.3|Mean Well/Arrow|9.00|9.00|
|Diode|D1,2|2|MUR460G (600V 4A)	|0.10|0.20|
|Terminal Strip|TS1|1|TSW-116-23-L-T-LL|Samtec|2.91|2.91|
|Test Point|NA|5|1249 (Test Point)|Keystone/Mouser|0.20|1.00|
|Fuse|F1|1|218.500XP (0.5A 5x20mm Slow Blo)|Littlefuse|0.75|0.75|
|Fuse Holder|F1|1|0PTF015BP|Littlefuse|0.43|0.43|