{"id":1540,"date":"2024-07-18T17:00:17","date_gmt":"2024-07-18T09:00:17","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=1540"},"modified":"2026-01-28T16:03:14","modified_gmt":"2026-01-28T08:03:14","slug":"working-voltage-of-microphone-capsules","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ja\/working-voltage-of-microphone-capsules\/","title":{"rendered":"\u30de\u30a4\u30af\u30ab\u30d7\u30bb\u30eb\u306e\u52d5\u4f5c\u96fb\u5727"},"content":{"rendered":"
\n
\"\u30de\u30a4\u30af\u30ab\u30d7\u30bb\u30eb\u306e\u52d5\u4f5c\u96fb\u5727\"
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\u3053\u308c\u3089\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30de\u30a4\u30af \u30ab\u30d7\u30bb\u30eb\u304c\u52b9\u7387\u7684\u306b\u52d5\u4f5c\u3057\u3001\u5bff\u547d\u304c\u9577\u304f\u306a\u308a\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"

Microphone capsules (electret microphones) contain a transistor called a FET (Field-Effect Transistor), which converts impedance and amplifies signals. This FET requires a DC working voltage, unlike dynamic microphones that generate an electrical signal directly from sound without needing any additional voltage. The working voltage for electret condenser microphones is typically specified between 1.5V and 9V in datasheets. However, the common practical voltages are around 2V to 3V. While you can choose voltages like 4V, 4.5V, 5V, or even 6V, it is not recommended to use the upper limit values (7V, 8V, or 9V). Higher voltages do not improve the microphone’s sensitivity and may reduce the lifespan of the FET. In […]<\/p>\n","protected":false},"author":1,"featured_media":1552,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[650,652,651],"class_list":["post-1540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-operating-voltage","tag-power-requirement","tag-voltage-limits"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/1540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/comments?post=1540"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/1540\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media\/1552"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media?parent=1540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/categories?post=1540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/tags?post=1540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}